Sadly that's untrue, it's simply human nature. Bullies are usually in the popular, social, etc group. And when they pick targets they usually pick people with weaker mentality, personality, or are odd and unusual. One such personality are people who are unempathatic, lack social skills. In a sense they target people that don't fit in.
Kids who grew up as bullies get rewarded later in life because they're simply more social and more likely to start businesses.
Obviously we can't speak with broad strokes in all cases however it's a common observation.
Humans are superior to animals and as such would be self-sufficient and not eat animal products.