I really don't understand this whole "whining over how much I got paid for my bug bounty" thing.
1. Nobody is asking you to find exploits in the systems of a company you don't work for. If you want to use your time that way, then fine, but understand that is your own time-management decision. Don't go complaining about how you feel "undervalued".
2. Companies are under no obligation to pay bounties and companies are certainly under no obligation to pay headline grabbing bounties.
1+2 = Stop whining and be greatful for someone paying you a five-figure (or greater) sum for something you didn't have to do.
Frankly, I also think this whole bug-bounty thing is a little bit dangerous. Sooner or later its going to end with various attempts at blackmail. It strikes me as a very thin line.
(For the avoidance of doubt, I'm speaking in general here. Not about Apple and not about this particular person.)