Re: Power unchecked @scrubber
Belated response; apologies.
In the UK we use manifestos to resolve the issue you raise. A set of policy objectives is annunciated by each party in a widely-circulated document; those are the policies that your local candidate for that party promises to work to bring into effect, and the prime minister is whomever the majority of them trust to do the same.
The system is set up to promote input on policies more than personalities. Compare and contrast with electing whomever was most amusing on reality television.
If you really insist that it must be about specific people: what proportion of the UK electorate voted for the Minister of Defence? And what proportion of the American electorate voted for the US Secretary of Defence? Or for any other cabinet member?