I'm not a good person to ask. Having lost a brother in a road accident, I realise that life is fragile and I have chosen to take the risks of racing (albeit somewhat controlled). I also consider everyone else (marshals, drivers, spectators) to have made the same choice (even if they haven't, or haven't done so consciously!).
So I would be fine to drive past stalled cars at high speed. I don't particularly like the idea of hitting it (or a tractor, or a marshal), but I certainly wouldn't want the race spoilt by that risk - I can choose to slow down, and so can all the other drivers. The marshals don't have to volunteer, and even if they have they don't have to obey the "run across the track and remove that stranded car whilst others continue to race nearby" command. By removing the element of choice, you take the responsibility away from the drivers (or marhals), and hence their decisions about what risks to take become muddled.
For me, racing can be too safe, but I need to expand on that for it to make sense. Otherwise I'd be racing the flimsiest car I could find, in petrol soaked t-shirts, with piles of debris on the track for me to hit, followed by some catch fencing with the finest wire available...
So... I like my HANS device. Everyone should wear one or an equivalent. Even on track days. Hell, if people weren't so bothered by wearing suitable safety wear in a car on a road, I'd say helmets, HANS and harnesses in all road cars. I like my carbon tubs. I like tyre walls. I like nomex. I like yellow flags. I like marshals, and would like them to be able to do what they do with a sensible amount of safety. I like safety scrutineering before a race. I like wet tyres. I like ABS on road cars because I recognise that 99% of people don't know how to drive, they just know how to get from A-B.
But I don't like starting races behind safety cars because someone in an office looking at the insurance document thinks it's too dangerous. I don't like miles of run off. I don't like aborting races because a car has crashed, unless marshals/medics have to swarm around the car. I don't like tracks with so much tarmac run off that it's almost impossible to not be able to rejoin. I don't like that everything has to have blame attached, as if there is no such thing as an accident. They might be foreseeable, but in some things (like racing) that shouldn't mean, to me, that they are entirely prevented.
I've not really got to the bottom of what I think is "acceptable risk/safety" and "unacceptable risk/safety", or why I think it. I'm not thinking it to be different or argumentative, and I know I've got a lot of holes in my logic. But I really don't want things to be too safe. The risk is why I like racing. I love to feel the feeling that having navigated a corner better than ever (and ideally better than everyone else at my level, although that's rare this year), I know I was moments away from a massive accident that could have hurt/cost me but my skill/judgement stopped that from happening. If racing ever just becomes driving around, and the penalty for a misjudgement is just you don't finish... then that's lost a massive part of the appeal. I crushed my T-5 vertebrae last year when I misjudged a braking point at Zolder, took off over a high kerb and belly-flopped back on to the track. It hurt. But I finished the race in a car with bent suspension and barely being able to breathe - whose fault is that? The tracks for not having safer kerbs? The Clerk of the Course for allowing the race to go ahead or continue? Or mine for accepting the risk and making a misjudgement? The latter, of course. I had to be extracted from the car and taken to hospital, which they later invoiced me for. If they'd told me that at the time I'd have taken my chances and got out, given time, myself.
I watch racing for the thrill of competition. I don't like to see crashes. But I want crashes to continue to happen, so that drivers respect the limits, and race hard within those limits. Schumacher (as an example) wouldn't have been half as 'dirty' had he been in a spaceframe car with 200 gallons on fuel in a welded aluminium tank next to his elbows. The balance is making sure that drivers are safe, but not too safe.
With the Sutil incident in question, I would have been totally, 100% happy about the car being there for x amount of time and moved under yellows. Until marshals were expected to run across the track - that is (to my twisted mind and flawed, incomplete logic) too much to expect.
I repeat - I have thought about this and why I think it, and I can't put it into a watertight reasoned paragraph. My logic is full of holes, and I patch them up with exceptions or special cases when they occur to me or are pointed out to me. I am aware I shouldn't be allowed to run a race track! And I know I'm not speaking for everyone.