Work Ethics and Professionalism

I just kept thinking about this a few times today.

We talked about how when you need partners or people to help you with jobs, it's difficult to find somebody else with the same level of professionalism, work ethics, and quality (say, regardless of skills) whom you can trust with your own reputation on the line. There are these great people, they just deliver with quality, treat people right, get priorities straight, and you simply enjoyed working with them. And from the way they work, you know they have been like that even from their school days to the various stages of their career.

Interesting enough, I didn't get the sense that these were "trained". Seems like it's the person, maybe their values, how they're brought up, cultural background, etc. But not that somebody just went through a course, program, or even a job and magically changed. I wonder how to get people there.