Guys and Their Egoism

Is it fair for me to say that
guys generally have egoism flowing in their veins?
If the game is on his side, he will stay cool.
If not, he wil go bull.
He will keep quiet when he fails in his attempts to score,
but when his teammates misses a
score, he will yell at that person.
He frowns at others' aggresiveness
when he didn't realise he is a hooligan himself.
He thinks the team will lose without him.
It's sometimes good to give motivation
but it will serve no good
if ones pushes his team too hard.
Well, it needs not be true for all guys to be like that.
But those are things i have in myself.

Are we true sportsmen or mere bull-fighters?
We need to check ourself.