Parent addresses this explicitly:

>not because politicians are any better than the average person, but because they tend to have at least a bare minimum of education, access to advisors, some positive incentives -the next election- and no high stakes on the decision like, say, a bar owner

Who said they they aren’t forced to. Specific individuals clearly can act reasonably on their own. It’s groups where you need control and systems of government influence those in power. Democracy’s clearly force winning some elections, but even dictatorship means relying on the military, police, and taxation etc.

They are being forced to - by the threat of being voted out of office.