Is self imposed exile a way to escape from society and the world?

Yoda did it once .. of course there was no cell towers around to track him .. odd cos its supposed to be technologically advanced

Probably

Nah, unless you're talking about truly, truly the middle of absolutely no where AND it stays like that.

Which is the problem the Uni-bomber had.

He had his self imposed isolation, but then more and more people came and built up around him, destroying his isolation and the nature and he turned to bombs.

Realistically speaking, not entirely.

I meet relatively few people. Society does not care if you interact or not. You are a commodity to be exploited.

I think you may take a retreat into occasional solitude.