If all combat was focused on is strength then sure, but it isn't - at least shouldn't be. Any DM who throws a dragon at their players by just having the dragon charge in and physically attack is not playing the dragon correctly and is also having his dragon die to characters who are much lower level then they should be for such a fight - very quickly. Dragons - even the dumber ones - are incredibly smart and tactical - they have a ton of abilities.
A dragon should be using his ranged attacks and other abilities to soften up the enemies - and then *IF* the dragon *HAS* to he gets up and close to melee - but by the time he does that either his opponent is nearly dead or his opponent is so skilled and powerful that the dragon turned tail and flew away.
Again - if all you are looking for is an arm wrestling contest then you should not be throwing intelligent NPCs at your players - just make high strength berserkers - and watch how a group wipes the floor with them.
A dragon should be using his ranged attacks and other abilities to soften up the enemies - and then *IF* the dragon *HAS* to he gets up and close to melee - but by the time he does that either his opponent is nearly dead or his opponent is so skilled and powerful that the dragon turned tail and flew away.
Again - if all you are looking for is an arm wrestling contest then you should not be throwing intelligent NPCs at your players - just make high strength berserkers - and watch how a group wipes the floor with them.