I agree with you, but sometimes I wonder if the big share of efficiency gains goes to a select few, somehow efficiency make society worst, at least from an equa

I agree with you, but sometimes I wonder if the big share of efficiency gains goes to a select few, somehow efficiency make society worst, at least from an equality point of view. That is what happened in the last 50 years in many countries. Sure you can buy a cheap Android phone for less than 1 day salary, but go buy a house. health insurance, retirement and send 2 kids to college with just one (or even 2) middle class salaries.