An increase in high level salaries (to people who have everything) increases the inheritance their kids get. Increases money for their hobbies, whose industries benefit. (builders of personal aircraft, luxury goods, etc).
Will some of it go into the market? Of course – and drawn out again at the first sign of trouble, making a crash.
Meanwhile, the # of people this actually helps is VERY small indeed compared to the overall population.
There’s no restrictions on how they spend and what they keep in offshore bank accounts to avoid even more taxation.
The wealthy have vehicles for money the majority have limited (toy amounts) or zero access to.
To buy the notion that they will put it back into circulation or to bolster their business in the hopes that the corporations will save us all is placing an unregulated, untracable trust in a few.
Govt officials can be thrown out, on schedule.
But corporations are forever and bad leadership that can hide behind a facade of public relations with minimal or no accountability and almost no citizen control pose a far greater danger to citizens than, for example, a government with at least some amount of rule of law compelling a tangible level of transparency.