Aside from Wells' science fiction, my only exposure to Wells has been his "Outline of History" that is a good book for an overview of history.
It is, but he may have stolen a lot of it: more here.
There are people out there who express what could be called "Wellsian" ideas or a "Wellsian" world view, but I doubt they'd acknowledge him as an intellectual forebearer. He's too Victorian or Edwardian and too associated with SF for today's intellectual circles.