In the case of the billionaires that were involved with Epstein, none should be left off the hook, and none were irreplaceable (and even if they were irreplaceable, the particular crimes are past the red line per my previous post).
By your earlier statement of
"Someone needs to explain to me how taking any number of billionaires out of the system will destroy it."
I assumed you were just speaking about the concept in the realm of generalities with regards to the government "looking the other way" if a person is providing a rare skillset or service that can't be easily found anywhere else.
There are examples of this happening in our past.
en.wikipedia.org
...and the government made that type of calculation. On paper, those former Nazi scientists (many of whom were SS) should have been up against a wall with the rest of them for their involvement in the Holocaust. However, the government made the decision to give them jobs here and overlook past transgressions (some particularly egregious ones at that) in the interest of expediting our rocket programs in anticipation of the cold war.