David Koch pours millions into PBS with no editorial power. I've seen his funding produce pro MMGW opinion programs.
In the years I was in business they were some of the best to work for as a contractor. They put safety and environment first. If you didn't have a good record on both you were not considered for their project.
They were very generous in the right sort of way. They hired contractors they could trust, then trusted them on cost and legitimate overrun or added items issues. They were not stupid but also knew not to be adversarial on every little thing.