It all comes down to ethics, integrity, and honesty. These things are at the very top of my list when evaluating a person. They are pervasive in how a person conducts their life. I don't find that people compartmentalize their cheating (or honesty/integrity). If you lie/cheat/steal in one aspect, it is probably in most/all aspects of your life.

I know lots of people who will do "anything at work to get ahead" but are allegedly "perfectly nice people" outside of work. I am not capable of separating the two, and will NOT socialize with these types of people.

So, when you say "only transgression", I actually consider that a VERY SEVERE transgression. And I refuse to associated with those that do.

But, if someone says, "I'm just here to try my best and have some fun, please don't rank me. Y'all go race, save me a beer." I'm perfectly cool with them being on the course with me, and will be happy to hand them a beer when they cross the finish line.

ETA: I'd also be happy to laugh with them when they explain why their swim went to shit, and how they came out of the water after the first loop and said "fuck it, I guess I'm not racing this one!".