not at all, because you're talking shite, as per. read my post about dedicated teachers. your logic is completely flawed.
the majority of teachers i know, or know through other teachers, aren't in it for the "best job" scenario. yes, there are those who couldn't give a toss, and yes, there are those who are career teachers. but they are in a very small minority.
and your evidence has no statistical significance, by the way, mr maths.