I'd have to say that when I started it was about making some money on the side. My career really took off in the mortgage business. Initially it was about the money, but that changed quickly after making some dreams come true.
I guess no one has called you a "dream maker", but I had a young family that I put in a home and that's what I was called. I won't ever forget them. My attitude changed. My goal changed from making money to changing lives, giving others financial security, givng kids a safe clean place to grow up, providing self esteem and a sence of accomplishment to young parents and assisting others in meeting goals that were important to them.
It does not matter if you are putting tenants in a rental, providing a home loan for a small home, rehabing a median priced property or selling a 400K property, you are adding value to your clients' lives, and to your community. Look at the social impact a home makes to anyone and understand that you are part of that, making needs, desires and dreams come true.
It's easy to be passionate about RE when you consider the impact you really make around you. How can you not be passionate about that?