This. I've also built up some incredibly successful guilds from the ground up and people often don't realise the time, dedication, organizational skills, people skills and dependency it requires. Imagine herding cats. Teenage cats who have just discovered women, red bull and other games but want all the glitz and glamour without actually committing. It's not an easy task by any measure, but it's very obvious why people can't relate to it.
This. Running a guild or clan can turn into a full time exercise. Fighting fires, calming teenager angst rage monsters, organising, learning when to compromise and when to put your foot down. There can be a lot learned from this sort of organisational learning.
However, it would really depend on the age of the person. Someone in their late 20's or early 30's might connect and know what it takes. Someone in their late 40's would likely dismiss it entirely. Really depends on the situation for me.