I am sure we all could recite chapter and verse about musicians or DJs who are good or bad, cater to an audience or play what they want, have great stage presence or can't talk to an audience, are making money or can't BUY a gig ... the fact is, whether 'live' musician or DJ, in both genres of entertainment there are some VERY good ones and some bad ones, there are some who are making a lot of money and some who aren't, there are some who can please ANY audience, and some who cannot ... we cannot try to define entire situations by what we know through our limited experience ... just enjoy the hell out of what YOU do, because we never know when we won't be doing it ...
And remember - that DJ you heard at that wedding who only catered to a few "drunken bridesmaids" was hired by the bride and groom who probably heard him/her at another wedding and thought it was GREAT ...