I find it dubious that anyone who'd finish "Top 5", even in AG, would be getting indignant over $50 prize money. That is unless we're talking a 5K where 25:00 gets you top 5, and that seems unlikely in NYC.
I'm thinking this is more the mentality that allows those "Planet Fitness" gyms to thrive, the ones where you are kicked out if you have any visible muscle or are looking for anything other than ellipticals and plastic 10lb dumbells.
Crossfit guy: It's clear you got made fun of a lot at school and gym class. I know that this feeling of inferiority and helplessness can really latch on and become hard to escape even as an adult. I hope you can eventually learn to respect yourself and not feel that you're constantly being judged by the standards of 16-year-old football jocks who picked on you in school.