I agree with what Patrick said. There are many benefits to the power versions of the lifts that may fit with your goals. It is possible to lift with great technique and move a substantial amount of weight using the power snatch and power clean.
Regardless, we want all of our lifters to have some minimum mobility skills, and that includes being able to overhead squat at least the empty bar. So, if that is a weakness of yours, then I would certainly address it.