Your interpretations are pretty good. "It takes all sorts" is similar enough. Though I think it's usually used as a negative statement, especially if you include the "ja jotkut jää asemalle". "Some people are strange/idiots", basically.
Its a bit related to then the further gyps on idiocy.
ei ole kaikki inkkarit kanootissa ei ole kaikki muumit laaksossa (not all moomins in the valley... its become a meme) hissi ei mene yläkertaan (no service to top floors... I think this is USA slang too) lepakoita tapulissa (from us: bats in the attic)
etc... all meaning "something missing from upstairs"
"By the pricking of my thumbs, Something wicked this way comes."