Obviously. What confuses you? If you have a problem, any type of problem, you obviously want something that overpowers it.

Anyhow, the most important use case for guns is deterrence. If the bad guys show up with guns, you want to be able to show them a bigger gun, indeed. Chances are that they either give up before starting any serious shit, or that they bail when they hear your first BOOM. 

 My comment was tongue in cheek. ;) 

 Ohh it figures. Although really, what fun is a 12 gauge if it's not spitting 1 oz balls of red hot lead? 

 Damn, replied to the wrong note. But well, still applies I guess