I try not to idolize anyone. Instead I admire and try to emulate traits and behaviors of people. I can then speak about what I admire about an individual as opposed to speaking about how I admire the person themselves. This fine distinction allows me to pick traits that will help me grow to be the person I want to be, not try and become someone else.
I am also able to continue to admire the traits of someone who may be tainted of flawed. Attila the Hun was not a nice man, hardly someone you would idolize. Yet there are many traits he possessed that could be channeled into positive, productive business practices.
I use the term Role model. To me a role model is not necessarily all or nothing. I highlighted the word role for a reason. Admire things about how a person performs in a specific role. I have had people that I admire their personal behavior, but abhor their business practices. They are still role models to me.