"...how is the value created shared among the people in the economy? ...Technological progress allows concentration of power in the one who holds the capital..."

Capital as the term is usually used is getting a severe beating right along with labor. Goods used to be much more capital-intensive than they are now. Look at the rotting carcasses of factories in Detroit.

And I am sorry - but you immediately switched from "wealth" to "power" and in a service economy, those are disjoint - perhaps in-opposition - things.

Buildings are built to the aesthetics of rich people - in the "mount the TV over the fireplace" style. There's a critic who tears apart crappy McMansion aesthetics all day long. Things like strip malls are an artifact of incentives in real estate development. And good quality food is plentiful and in cases, quite cheap.