Google. Mozilla. The FSF. Microsoft. IBM springs to mind. These will all have their time in the spotlight as tech darlings or villains.
You aren't using the Stallman Trick here. The fact some organisation or person seems good today is totally meaningless compared to what it is legally allowed to do, and what they have incentive to do.
It is a bit cynical, but assume people are going to do what the incentives push them to do and the world becomes a very simple and predictable place. The time to panic isn't when someone threatens you, it is when they have the means & incentive to threaten you. Run or fight then, not later on.
If the FSF gains power, it will abuse that power. Sooner or later. They will react to money just as much as the rest of us. Look at what happened to Mozilla.
You seem to imply that there are always incentives pushing any organization to do evil things. That's a big presumption.
Organizations are just groups of people. People have varied motivations, and their motivations don't have to change just because they join forces with others.
If what you're saying is correct, then either people's own varied motivations are all evil, or instantly become evil the moment they join a group (whatever that means).
Regardless of the initiative (could have been rural broadband) by expanding into these areas Mozilla's parent company said..
We have enough money for operations. This extra money will go to this good cause.
As someone who might donate I would hold off because they have more than enough. I could use my money directly to support a cause.
Not sure how a charity starts giving to another charity (unless that is what they specialize in). That strikes me as greedy. If you have enough don't ask for more. There are local charities who could use the money.