I don't know about you, but if I'm going to donate to/work for charity, I'd like to ensure it's for someone who actually needs it rather than the Amazons of the world. I don't feel a pressing need to donate any money or time to them.
Or to put it in another context, if you went and volunteered for a highway cleanup, would you get mad if Bezos drove on the highway you cleaned? Because that is what your position here is analogous to, and that seems like a poor line of reasoning to me.
No, but I would get mad if Bezos made a ton of money charging people to drive on a clean highway after I had cleaned it for free.