Accuracy is extremely important, however, in a range/training setting for learning purposes it can be suspended. (Speed vs. accuracy vs. tactics to gauge benchmarks)
For the conceal carrying citizen, it is very important to understand the consequences of pulling the trigger, or even pulling a gun on someone. This needs to be figured out in great detail before a loaded firearm is carried because nothing should be a surprise to that person once they made up their mind to use that firearm.