This has always been the nail in Milton Friedman's coffin.  Concentrating wealth at the top doesn't "create jobs" unless you work in the luxury yacht industry.  Spreading wealth as evenly as possible is dispersing oil throughout a machine with many working parts.  It makes it work much better, whereas starving it causes the machine to seize up and harms everyone, even those who own the motor.  Yes, people who need necessities do not save they spend.  Good.  Their savings continues the circulation of the energy of capital.
Money is dynamic, not static.  Wealth concentration is the engine light going on.