The Great Equalizer
The ethical versus unethical argument can go on (unresolved) ad infinitum, but here's something to consider …
Author Walter Scheidel has taken a close look (over a long span of history) at how gross income inequality tends to get resolved.
https://www.amazon.com/Great-Leveler...s=books&sr=1-2
I think (hope) that the gap between rich and poor here in the United States - as well as the rest of the world - does not become so stark that violent revolution(s) become the norm. Here in the U.S., a small (but growing) minority of the one percent, (i.e. Marc Benioff and a few others), recognize the problem. (Mr. Benioff recently stated that capitalism - as currently practiced - will have to change.) Fortune magazine recently ran an article highlighting "The Future of Capitalism" and what changes business (and the wealthy) may have to make. Jamie Dimon and the Business Roundtable recently adopted a resolution changing a longstanding BRT policy with respect to what obligations "Big Business" has to the rest of society.
The key to a stable "free enterprise" capitalist society is a large (prosperous) middle class. If the view prevails that it's OK for the rich to own everything - and it's your fault if you're not one of the rich - eventually the rich will find their heads handed to them on pikes. Donald Trump says you're either a winner or a loser - there's no in-between. If being a "winner" means you're in the one percent and everybody else is a loser, history suggests the winners will become the biggest losers. This is the one thing - the only thing - that Karl Marx got right: In a capitalist society, once the middle class disappears, the rich are doomed.
I choose to be optimistic. At the one time in our history when the country was under great economic stress, (i.e. The Great Depression), with communists marching in the streets predicting the end of capitalism, a beneficent "dictator" (Franklin Roosevelt) stepped in [literally] saving the country. A lot of the programs he instituted, (i.e. deposit insurance to protect money people deposit in their bank accounts, Social Security, unemployment compensation, various Government-funded programs to put people to work), were deeply resented by the rich. Over time other programs have come about, (i.e. Medicare and Medicaid), to prevent people from sinking into desperate poverty. These programs have given people hope - and neutralized the arguments of anti-capitalist fascists and would be dictators.
We were lucky - we got FDR - while Germany was not so lucky … Their dictator turned out to be a murderous tyrant. Thus far we've been lucky in that we have a Government which tends to self correct and deal with problems before they get too far out of hand. If we (collectively) allow the middle class to disappear with all the wealth going to the top, we may run out of luck and lose all of the good things we take for granted.