It depends on the friends. Once someone has been away from school long enough, he tends to drift away from the thing about having a lot of friends who are similar. Work can tend to make friends of people who are of similar types, but only sometimes and only to a limited extent. In any case, the longer someone lives, the more chance he has to meet friends who don't fit into one group or another. As someone who doesn't particular need friends to be like me, that lets out a lot of the thing about gravitating toward one "kind" of people or another too.
I respect and value people for the kind of human being they are - not the traits or tendencies they have in any career or abilities direction.