Science vs "Science"

The reason why physics is a pretty solid discipline is not because physicists are particularly smarter than anyone else, they just have a much better set of mechanisms for checking their stupidity than most fields do.
The thing that makes science ... well, scientific, is the position of maximum possible scepticism that it takes toward all knowledge.  If scientists start losing that scepticism, they become less and less scientific.

(Socio-biologists, for example, seem to be particularly prone to making claims way beyond what the evidence would allow)