I wouldn't say Peter sabotaging himself is happening at all, if such a thing was happening he wouldn't be working on Horizon Labs to begin with, or making PI work, and that's on Slott's own run, so it's weird for him to have said that during Superior, the problem seems to be he doesn't tend to think ahead, that's easy to notice even if not mentioned much on his stories, he's always focusing on the now and barely on the later, of course, that's one way of sabotaging himself, but not because of some weird complex which makes him think less of himself for having above average intelligence, because frankly, even though that's mentioned on Superior, I haven't seen anything indicating that, in fact, again, during Slott's run, when Peter saw people using his inventions during Ends of the Earth (Before Otto started that global warming shit), he was happy his intelligence to make those inventions was helping out people, and that was before Superior, and even after it during PI era, he seemed happy to be using his shit to better the world, even got a bit angry when Otto pointed out that Peter was using other's shit to make PI work to begin with because Otto was undermining his intelligence.