I'm not out to tarnish anyone's reputation or support anyone else. I'm just asking has someone done the due diligence to make sure that's not the case? I believe corporations are self interested and driven by preservation just like human beings are. I don't have anything against bankers either I just don't trust them to play fair business is a dirty game that people play to win.
Are you talking specifically about GPU mining for alt coins? There are some mining specific cards that are built on the platform of a previous GPU, but I don't think it would make sense to assume anything.
Any big bank could purchase a significant % of Bitcoin if they really wanted to. I don't think they even care about Nvidia or AMD aside from their respective stock prices for investment purposes.