Totally agree, Creeper, totally agree.
Respect the game, and respect the opponent. I understand that the Broncos offense also perceived said disrespect when the Cowboys were just lining up to go for it on 4th so early in the game (refusing to punt or attempt the FG). So that hyped them up, and the Broncos defense was ALREADY hyped after 2 consecutive 4th down stops. The rest is history. They rode that disrespect to a 30-0 lead.
For McCarthy, an NFL Head Coach, for him to not understand these same ramifications...it just doesn't give me much confidence for the caliber of his coaching. Sure, players will ALWAYS want to go for it, but that's why you need a HC who fully understands the risk/reward balance. It's OK, just punt and play field position. Or take the points and the lead. Having a lead is really important in the NFL, even if it's just by a FG, early in the game.