It is not in the interests of the super wealthy alone, just like JP Morgan's railroads were created for his sake but in the end produced great wealth for everyone in America. It is very short sighted to see this as merely some oppression from above. Technology is not class-oriented, it just is, and it happens to be articulated in terms of class because of the mode of social organization we live in.

Is the "Great wealth for everyone in America" in the room with us now?

There's certainly great wealth for ~1000 billionaires, but where I am nobody I know has healthcare, or owns a house for example.

If your argument is that we could be poorer, that's not really productive or useful for people that are struggling now.