And if you're running a 1500 crore company and spend time fighting on Twitter, crashing cars, impulsively resigning, abusing your own investors, giving away your shares impulsively, you would be hard pressed to find people who will call you stable.
Is there any guarantee that Rahul won't retract this decision by next week? There isn't, and that is unstable behavior.
Here is another anecdote: https://news.ycombinator.com/item?id=9496238
I have a great story about a startup run by a bunch of insane guys. One of the founders cashed out a ton of money early and bought a $100k car; another founder's dorm buddy proceeded to wreck it within a month. Ron Conway's son used to bring cash to one of the founders, who blew it on drugs and partying while supposedly spending it on business development. Crazy. Irresponsible. Negligent. Bill Maris would NEVER invest in such people. All of the Valley VCs who are outraged with Secret and the founders' cash-out would NEVER want any of those guys in their portfolios. Too bad those crazy kids ended up building a $250B company, huh?
Wouldn't that put Elon Musk in the bad books as per your rather prejudicial yardstick of measuring the worthiness of a person at the helm of a company?
Also, it was Advitiya (the other co-founder) at Housing who crashed his car.
You've got to look at a nominal case, the median, not the outlying example to justify your mistakes.