We all have different abilities and disabilities to some degree.
If you choose to deal with a 'disabled' person you we find there are some things they can do exceptionally well.

If you look past some abuse from a person with an ego disorder you may find a diamond in the rough.* A dose of acceptance or forgiveness goes a long way to include wider humanity in your world.

We could call this Toxic Ego Disorder. http://www.webpsychologist.net/of-chattering-minds-toxic-emotions-and-insatiable-egos/

If you have a form of toxic ego you might not like people without it.
You might like to argue with others who have this condition.
T.E.D is a small yet powerful aspect of a person.

You don't have to convert to Buddhism to overcome this disability .
https://thoughtcatalog.com/ryan-holiday/2016/06/25-ways-to-kill-the-toxic-ego-that-will-ruin-your-life/

For example I can highly respect and like someone with toxic ego even when the one afflicted is unaware of their own condition. Ex. my friendship with Steve. We are a foil to ach other but fight for the same cause.

I have a hard enough time dealing with illusions that my own ego tries to foist on me. When I succeed in taming the ego I am more aware of unnecessary prejudice and feel more creative.

I know my own disabilities well enough to know when others become intolerant of them. There is little chance of changing others but we stand a better chance to change ourselves.






*
some rough folk call this finding a diamond in a goat's ass