No, the good individuals.

I never go looking for the bad, I just assume it as a general tendency so that looking for the good ones become the focus...

The bad/might be bad's tend to drown out and hide the good ones if you expect nothing but good from everyone, expecting nothing good from any of them tends to make the good individuals and the good actions stand out from the crowd, the other way around makes them very difficult to spot and ultimately gives you less reason to stay positive..