Nothing wrong with "getting big" in my view. The more somebody can move weight, the better. Makes for more usefulness. When I see roofers climbing up ladders with sheets of plywood, I admire.
Funny thing is, they tend to be wiry guys.
I wouldn't mind gaining 6 lbs. of pure muscle, but I can't. It's physical architecture, bred in the bone. That might be part of why our Physical Fitness posts focus on all-round conditioning.
Arguments about high-reps vs. heavy will go on forever, including here. I like hate doing both. I do both because I have sedentary work and want to postpone frailty for as long as possible.
Lifting even light weights builds strength, muscle
Low Weight + High Reps = More Strength. How do you build muscle: more reps or more weight? Learn why lifting light weights is perfect for gaining muscle.