David Weaver hits this one out of the park:
They did what pastors all over the world have learned to do, they copied what they saw major contemporary pastors wear. That quickly turned into “contemporary pulpit cool.” A new tradition; a contemporary fashion dogma was born. Now pastors feel compelled to speak with their shirt out even in churches that minister to businessmen in suits. They all look alike. Some have become fashion trendsetters with their own line of “church cool clothing.” It really came into focus recently as I flipped through the channels and saw a young man standing on a stage dressed a certain way and immediately I said to myself, “He’s a pastor.” Sure enough it was a religious program and he was a pastor of a “contemporary church”, whatever that is.
Fighting the 'oppressive' status quo leads to its own unassailable status quo. Tuck in your shirt.
[Thanks to JMB for the link]