Monopoly capitalism is just as good at suppressing new business as government bureaucracy is. Markets with a strong de facto monopoly - like web search, commercial operating systems, telecoms infrastructure, and so on - are completely closed to newcomers who can't access billions in capital.
You can be sure there are some very strong business opportunities in those areas, but because capital is so concentrated they will never make it to market while the de facto monopolies remain.
>If you let the average person become 1.10x better off, and you do so by letting some people become 10x better off, are you ahead or behind?
Also known as the "a rising tide lifts all boats" argument." Sometimes dressed up as "trickle down."
Unfortunately Piketty's data proves that the world doesn't work like this, so I'm not sure why you think the question is relevant or interesting.