The real problem is the people who follow them, validate them, and throw money at them. Big names who sit on their boards, etc.
At least in Neumann's case, the only thing that happened was some rich people lost their money. There were probably no pension funds, etc, investing in him. And their product didn't hurt anyone.
It's easy to quickly think that "if you're a 6'5" good looking man with great hair you can get away with anything", but people also wanted to believe in Elizabeth Holmes.
To me Elizabeth's Holmes case was even scarier: Investors wanted to believe in a "female Steve Jobs" so much that people were getting bogus medical tests. "Real people" -- not just wealthy investors who should be prepared to lose money -- got hurt.
And unlike the NY Times editors, it doesn't bother me that Adam Neumann walked away with $1 Billion. It doesn't hurt me at all, and it certainly doesn't occur to me that this money should somehow be redistributed to more "worthy" people. It's odd for an uninvolved spectator to feel bitter about this.
Notice that the Times was gushing about Theranos until the Wall Street Journal called them out, but they were skeptical about WeWork from the beginning. One played into their preferred narrative, one didn't.