I'm ignorant about David Rockefeller as well. And it may be right to criticize David. But the parent comment was actually talking about events related to John D. Rockefeller's philanthropy, not David's. John D. Rockefeller did not pass on his wealth to his Son, let alone his grandson until after the events mentioned.

edit: for example: David was not even born when the Flexner report was released.

I'm not actually sure what the overall point of the parent comment actually is, since he start's with David's timeline and then cites the reduction in medical schools related to Simon and Abraham Flexner, but doesn't actually delve into why Osteopathic medicine survived the medical education reform, or into John D. Rockefeller's support for Osteopathic medicine in general.

So, while I see the implication, the parent never actually makes that implication explicit.

Either way, I think it's important to separate the actions of the grandson and grandfather.