(Most) humans aren't emotionless machines, even highly intelligent people engage in self-destructive behaviour despite recognizing it as such.
There are probably several hundreds of millions of personnel who will produce more net-worth in their lifetimes than I will in mine (and who therefore have a greater right to their lives than I've to mine; but that's not important right now). Where in this thread have I made a claim about myself that was more extreme than that?
Indeed, and much to our detriment. Which is why...
> even highly intelligent people engage in self-destructive behaviour despite recognizing it as such
... this justifies permitting those with self-destructive abilities to exercise their abilities; such that the intelligent people who remain, are both intelligent and resilient.