Not always.<quoted text>Birds of a feather..... and all that!!!
Just because there's one or two bad apples in a bag full of them, doesn't mean they're all bad.
But, the GOOD ones that get forced gravitationally nearer to the bad ones, will eventually acquire the foulness of.
The moral of the story being, learn to recognize the truly bad apples and cons, and walk WIDE paths around and AWAY from them.