They don't Cure disease because it is ILLEGAL to not prioritize SHAREHOLDERS
The stock market is what is ruining our country. They made it illegal for a publicly traded company to put their employees first, or their customers. Stockholder primacy was established in this case, Dodge vs Ford, where Henry Ford wanted to increase worker pay, but the Dodge Brothers who were stockholders in Ford at the time sued and won, ensuring the enslavement of our country for over 100 years. Fuck the Dodge Brothers.
The fear by Dodge (aside from the fact that they were competitors) was that if a publicly traded company takes investors money, then doesn't prioritize their payout, it could be a ponzi scheme.
https://en.wikipedia.org/wiki/Dodge_v._Ford_Motor_Co.