Investors MUST accrue ROI to their own account and/or that of their own investors, the limited partners. If they do not, they're done. Going bankrupt personally while providing huge value to the world at large is a TERRIBLE outcome for any investor.
Tesla invented great things that provide huge positive ROI to the global electrical system, yes. Nonetheless, giving Tesla 150k was a rather poor investment for JP Morgan. If Morgan had made many more such bad investments, he'd be bankrupt, and unable to fund any further value for anyone.