I agree with you by and large but not sure this is entirely fair.Take Hooker & Heppell for example; two of our most experienced players and leaders, but through injury have never been the guys out there pushing the limits at training and on-field.
Say what you will about Heppell but the dude is absoloutely shredded and has always been a top ten time trial runner (FWIW at our club). Hooker is an absolute beast who clearly sets standards on the gym.
You need some blokes with those freakish physical traits and we just haven’t drafted them.