I think the premise is flawed. 1st, there is no evidence that programmers do invent worlds more or less often than anybody else. 2nd, while it is a cliché there is also no evidence that programmers have difficulties or don't want to integrate into their societies more or less than non-programmers.

World building may be escapism in some cases, but the common case of world building is contingency planning. Just look at investment banking or, more relatable, getting your kids to and fro school.