Ego can push people away from you.
Ego can stop you from growing because you always consider yourself better than others.
Ego can make you lose opportunities that could change your life for good.
Ego can make you lose significant relationships.
Ego can make you condemn everyone and everything around you because you feel yours alone is the best.
It's important to realize there is difference between Ego and self respect.
Ego means looking down on people. Self respect means avoiding situations that could make people look down on you.
For example:
"He didn't visit me formally, he just sent a text inviting me to the occasion, I won't go".
That's Ego.
I cannot go to an occasion I wasn't invited.
That's self respect.
Dismantle your ego else it could ruin your life.