If you lived on an island with the cure for cancer you would have every right to refuse to have it harvested and you forcibly moved to the Shetland islands as compensation.
And if I did that I wouldn't blame people for considering me morally repugnant.
It's just like the (let's assume factions of) Maquis who'd rather start a full-fledged war with the Cardassians than leave their precious little colonies when they live in a world where there's the technology to recreate their homes in nigh-exacting detail.
Hell, even "Family Guy" did an episode where Carter had come up with the Cure for Cancer but wasn't going to sell it to anyone except for a steep cost. Does he have the legal right to do that? Sure. That doesn't mean he should do it, or that it's ethical for him to do so.