Respect

I have great respect for someone who wants to be good at what they do, and I look up to them. Some times I forget, they have lives too, and they are as human as me.
I sometimes make these type of people into superbeings, and when I do, I expect them to be a certain way. In reality, this becomes a fantasy. I somehow assumed good work equals good person. This has been proven wrong time and time again.
The person can be a genius at their work, but be of poor character in general.
It is hard for me to reconcile this, it beats my head up to think the two can be separate, and I don't know why!