[naveen99]

It’s just bad luck and survival instinct. Stubborn genes end up in a position of power and then they cling to it. For a stupid, stubborn king, it’s sometimes easier (more selfish, evolutionary fit) to just kill the intelligent court advisor or jester than to acknowledge mistakes and give up power for the benefit of the state. In a game of thrones, absolute reason gives in to back stabbing. Also beauty and strength sometimes don’t have the patience for intelligence and outsource it or kill it if it gets in the way of self propagation.

[ninetyninenine]

doubtful. Stubbornness is so common that's it's unlikely to have a roundabout reason for why it exists.

[naveen99]

Royalty used to have lot of children…

[ninetyninenine]

Yeah but common peasants have tons too. There was no birth control back then.

The common peasant should dominate the gene pool given the massively larger proportion relative to royalty.

But I’m just making conjecture here as much as you. Who knows? you could be right.