Is wage a indicator for training speed?

I'm thinking about opening a thread with player values and their training speed for each level (you guys give me data, I will put it together in the start post. I want to concentrate on high value trainers, if I include every player it will get too confusing I think)

And do you even think its useful? I would like to know what training speed I can expect from a certain value in the start of a new season.