We all know they’re not going up there for the good of humanity or whatever. They want to turn their billions into trillions.

Yes, and necessarily figure out and establish lunar industrialization in the process. Depending on viewpoint, this can be a big argument in favor of the good of humanity.

I agree we need to fix our economic incentives and inequalities.

Though I don't see how the Moon of all things should be spared from capitalist exploitation. It's probably the one place where they can't do much harm, no matter how hard they capitalist.

Theses worries are fully justified when it comes to rain forests, deep sea mining, child slavery, union busting and pretty much anything they touch on Earth. But on the Moon?

There is one interesting worst case scenario: A corporate monopoly exploits the Moon so ruthlessly, that it outcompetes terrestial production. Let's say certain building materials or other things of value are suddenly much cheaper to import from the Moon than they are to make on Earth. Wouldn't that end exploitation of people and animals in these industries on Earth, preserve ecosystems which would have been destroyed otherwise?