Brady and Montana....comparable in both the sack numbers and rushing attempts each year. Only difference is Joe gained substantially more yards/carry. Bottom line....similar contact.
Elway averaged about 1 carry more/game than Brady and slightly more sacks.
Marino....cleanest jersey of his era.
My point....Brady takes his shots out there...by guys 30 lbs heavier than of from the era the greats of the 80's.
Check out Steve Young's 2nd to last season....48 sacks, 70 carries for 450 yds.....he abused his body that year and lasted only 3 games his final year. The pounding takes its toll as does Father Time. Here's hoping Bill calls more running plays. Preserving Tom must be a huge consideration
I think you are wrong about similar contact between Montana and Brady. Sacks and rushes do not account for all the hits QBs take.
Today there is basically a batter's box for where defenders can hit a QB. You can't hit them below the waist or above the shoulders which you could get away with back in Montana's era. Back in Montana's era, you could get away with slamming a QB on the ground. If you did today, you would get a 15 yard penalty.
Also, medicine and the equipment are better today than they were back in the 1980s. The football gear Brady wears today protects his body much better than the equipment did for Montana because there has been huge advancements in the material and design of the football gear. Also, Brady's career would have been over if he had the injury he had in 2008 back in say 1983. Up until the mid 90s, an ACL tear was pretty much a career ender. Today, players are back to full strength in less than a year in many cases.
You cannot compare the beating a QB in the 80s got compared today. Yes, the defenders are bigger, but they are far more limited in how they can hit the QB. And the technology and medicine also prolongs a QB's career.
As I said in my last post, QBs playing into their 40s at a high level are not going to be uncommon in the next 5-10 years. The rules are designed to protect the QBs at all costs. QBs' bodies won't break down as fast as they did in past eras.