Ultimately, shows are just that - shows and an opportunity to display and sell our works. That said, I have found as others here have testified, mixed justice in many shows I have entered.
Realism is nearly always the bastard step-child and prizes and money go to the most outrageous artists by judges who were trained the school of "not realism".
That said, this weekend, I took Best of Show and People's Choice at a an art show that values realism in all its forms - God Bless the Science Fiction community. Sci-Fi illustration and fine art is one of the few carriers of realism these days. This little show has been running for 34 years and does about $13,000 in sales from an attendence of less than 1,000 people. No, it's not huge, but it is respectable and it keeps artists interested and helps pay their bills so they keep painting and improving themselves.
Save the realist movement, paint an elf.