TC
Paul Spencer is dead. So is his wife. As far as I know there wasn't much wrong with his genes, or indeed his personality.
There is, with hindsight, a lot to suggest that his attitude set was hazardous. Unluckily for him, he was able find someone to expedite his flight training without this being routed and challenged.
The consequences of this whole sorry affair are tragic and certainly not over for those involved (Paul and Linda excepted).
The "gene pool" is, if anything, poorer for his (their) loss.
Please refrain from trite pseudo-Darwinian witicisms.