I never did like flying the R22 much, but I'd have to say that I agree with the original poster. They've contributed more to the helicopter industry than any one else I can think of. One could even go so far as to say that there is a helicopter industry pretty much thanks to Robinson. It would certainly not be a big as it is today had they not existed, that's for sure.
It doesn't qualify them as prestigious, but surely greatest.
Now if they could just get rid of the tethering 2-blade rotor, build them less paper thin and get proper cyclics in there, we'd be in business.