He will do morally much better, if he succeeds in funding the development of said cure, and in actually making it. But he will be competing with more interesti

He will do morally much better, if he succeeds in funding the development of said cure, and in actually making it. But he will be competing with more interesting propositions, investment-wise, in he form of subscription drugs. Ergo, "why ?" is "probably because of money".