From personal experience strictly: First and foremost the exercise is something we can all use, successful or not. What working out did help me do is get into a sort of a discipline and made me eat and drink proper healthy food. A side effect of workout, indeed a good one for all us chair-dwellers, is that it fixed my posture as well - no wrist pain, no back pain, no neck pain ...
One of the fittest guys I know, works out and runs several miles every morning, has terrible wrist pain. I know 3 other similar people at my current job.
I don't think your lack of pain has anything to do with your working out. More likely luck, genetics, or lack of other activities that would lead to pain.
