This is a little like the freeweights vs machines debate (when we can use either or both). All things being equal getting a little stronger equates to getting bigger. But it doesn't mean a bodybuilder needs to do a 1 rep max of 500lbs in order to get a chest of over 50-inches. No more than a powerlifter need so to 10 x 12 reps with 250lbs to max out at 500lbs.
My muscle, such as it is, isn't needed as such it's just a pleasurable side effect. My strength, on the other hand is. For a bodybuilder it's the complete opposite.
Debate wise you'll see volume vs HIT argued from now to doomsday. The problem is people spend far too much time arguing vs DOING.
So, like Stevesmi says, train well, train hard and in good form and pick, what you wanna be. Wanna be strong - do less volume with a heavier weight. Want muscle, medium weight and volume. Endurance, light weights, high reps.