There are incentives to developing medical technology beyond the opportunity to become obscenely wealthy. If you do so, you are necessarily depriving some subset of patients that need the treatment.
Honestly, I find it pretty unimaginative (and a bit disturbing) that the only “incentive” you can think of for treating sick children is the ability to monetize the treatment - it’s a virtuous endeavor in and of itself. I must say, though, it’s hardly surprising to meet someone with such a worldview on a VC-focused forum.
Edit:
> Rent-seeking is the act of growing one's existing wealth by manipulating the social or political environment without creating new wealth.
https://en.wikipedia.org/wiki/Rent-seeking
This aligns neatly with my comment - gatekeeping a medical treatment behind artificially high costs to enrich yourself is the very definition of rent-seeking. I think you’re digging yourself in to a pretty deep philosophical hole here, solely out of some need to nerdsnipe people to reassure yourself of your own intellect.