What you look like in L.A. and Hollywood, and your stature, as seen by the people with the power will always affect whether you're hired and have a continuing career or not.
Frankly, the guy who LOOKS LIKE a director/producer/writer is 20 times more likely than the guy who doesn't. 70% of the time, actually getting the part does involve "Looking the part", no matter how much actors rail against type casting. Doesn't matter. Hollywood CARES about how it looks
In Los Angeles and Hollywood, it's ALL about keeping up with appearances. I don't just write. I LOOK like a writer.