The special combination of knowing that there are plenty of scumbags who will do anything for money and the comprehension that not believing in the human speciese will lead us to doom, or hell, or both.
Most people who believe in mankind don't wan't to accept that their neighbor or old collegue might fuxk then over or even poison them for 200k.
Most people who aren't foolish enough to think that there aren't plenty of people would let a whole town be poisoned simply to save them a few million dollars, don't realize that if they give up on the good will and intelligence of humans they are sentencing thenselves to world without nature or freedom.