Truly unlimited money would give you the ability to actually influence the world to some extent. You could change laws by funding politicians that agree with you, and punish them by stopping funding and funding their opponents so they lose the primary. You could even start your own political party. Unlimited money also means almost unlimited propaganda though there are some bottlenecks there, like monopoly laws. But you could buy out some major social media outlets and change policy and change the algorithm.
That said, there's a lot of limitations. A lot of things are so culturally ingrained that even if you controlled all media, people would still think that way despite non-stop propaganda against it. At a certain age, people's view of the world, cultural and sociopolitical views are solidified. So it would take at a bare minimum an entire generation before you really started seeing some cultural change.
And some things are the way they are just due to biology. You wouldn't be able to solve blackpill problems (hypergamy, male disposability, etc.) as those are downstream from biology. No amount of propaganda would make women like ugly men, and no amount of propaganda would make men stop simping and stop dating down in looks (when I say juggernaut law is unstoppable, I mean that literally).
There's also limited resources, unlimited money doesn't spawn more land or oil on earth. And you'd have to be careful not to cause too much inflation, otherwise you'd cause more problems than you'd solve.
But the biggest buzzkill would be if you rocked the boat too much, the elites would find some way to get rid of you. Either put you in prison for some bullshit charge, or simply have you killed. You could have a frontman do your work for you but you'd still probably get found out. Actually you would definitely get found out unless your unlimited money runs on pure magic that somehow generates legal tender without the federal reserve knowing.
So I think I would just stick to trying to promote e/acc as much as possible. I'd get all the e/acc supporters and figures together and ask them how to do that. Accelerating AI as quickly as possible actually could solve a lot of problems, including blackpill problems. AI girlfriends for one, and ultimately FDVR.
And if all else fails, I could buy a large chunk of land in the middle of nowhere, have a nice house built from the ground up, and just live out my days in peace and quiet without having to work.