In theory, the weaker team can "try" to get the ball out the back as fast as possible but in practice, I see penalties for teams getting steamrolled in the scru

In theory, the weaker team can "try" to get the ball out the back as fast as possible but in practice, I see penalties for teams getting steamrolled in the scrum quite often which would suggest that the tactic is not entirely effective. I don't understand much of what goes on in the scrum, but I love watching the battle for dominance over the course of a game. Are there collapsed scrums frequently? Yes. But it is an aspect of the sport that gives a chance for the heavies to shine. The increasing use of mauls on the other hand...