Okay, so forget the word felony. "You would have aided/abetted a malicious criminal and profited monetarily by doing so?" My point is that selling an exploit doesn't become morally okay just because the company doesn't offer a bounty.
You say it's subjective and then the reason you give is that some people would, knowing that it's criminal, still commit a crime.
It looks like their view of the activity isn't that it's fine to do, rather that they don't care that it's not fine. This implies that they know and accept that it's not fine.