Individualism vs. Collectivism
There is no such thing as a true "community". Mutual collaboration in equal parts does not exist and cannot be substantiated via concrete proof - despite how much musicians claim that they're "invested in it for the good of the band". This is an utterance that is only relevant to the contextual time and place, and expressed when it is most convenient to them. Of course, you inevitably become the "bad cop" when the musician ends up being the one to contravene their own standards of accountability, when you're landed with the responsibility of picking them up on it.
The reality is: people are individuals, a liability unto themselves. People are never "invested in it for the good of the band". People are only invested in it for themselves. People might propagate a fabrication that they are "invested in it for the good of the band" in order to facilitate circumstances conspiring in their favour. But they immediately drop these convictions as and when it matters to them.
Read, compare and contrast the following threads.
Read & Blog
The "Watch Blog"
Red & Black Music was set up in 2012 to stop musicians cancelling.
Please note: full names, addresses and contact details of private individuals are omitted for data protection purposes (unless already made public elsewhere online).
A category naming and shaming unreliable musicians to watch out for.
A category reporting unscrupulous venues and traders.
A category exploring the issues faced working via agents and promoters.