My point is, Soros demonstrates that it's not necessarily a bad thing for a billionaire to use his (or in Oprah's case, her) money to make the world a better place in his or her estimation. Soros' manipulations can be partially credited for the triumph of the marriage neutering movement in the USA (which I opposed) but even more clearly, Soros helped collapse the Soviet Union. And for that he deserves unqualified praise. So for good and bad (mostly good) Soros has changed the course of world and US history. Some might reasonably interpret that as "taking over the world." Particularly if they are butt-sore about the fall of the Soviet Union (swell violins)
I would say that there are three factors here to examine: methods, targets, and ultimate goals.
Methods can include peaceful means, protesting, violence, torture, fomenting rebellion, etc.
Targets can include governments, parties, public opinion, etc.
Goals are more nebulous and we generally won't hear about those; they can include "one world government", American supremacy, arms deals (money), peace, furthering one's career, etc.
To examine someone like Soros, I think it's important to visit all three categories. Someone may have a goal you agree with and be targeting people they shouldn't, or be using methods that are unethical. Or someone can be doing things that look good at first glance (useful methods) but with ultimate goals that you would consider to be horrible (like for instance "fighting bad guys in Syria" with the ultimate goal of war profiteering).
I can't assess Soros clearly enough to visit him on these categories, but I just wanted to mention that checking off one or even two of them
does not mean we should applaud the person. As demanding as it sounds, all three have to be lined up or else there's a problem.