Plus lets face it at the end of the day its their job & although its very physical & the risks are high,why should they be any different to us?
They dont work the hours we do & earn more than we do (I'm talking "names" here)so they should be no different to any other employee!
There is just as much stress etc for your normal working man yet they dont all turn to drink or drugs,as has already been said thats just a sign of weak will & character!
And as for the injuries causing drug addiction,thats another case of weak will,I know from personal experience that you live thru the pain & only take pain killers when absolutely necessary!
There is barely a muscle or joint on my body that isnt half destroyed yet I dont indulge in drink & drugs to "solve" the problem,I just learnt to live with it.
There a plenty of guys out there wrestling who havent succumed to the vices & they go thru exactly the same as those who have.