I think that a raise in income could not be bad. Players salaries will be higher and higher in the game every season due to training, but the number of teams who can afford to keep them remains pretty much the same. Who are we training them for? In market they are worth roughly as much as before training. To myself? To train a team that could win my league or any of these competitive leagues, no matter what level or how strong they are, takes a lot of time and still I am unable to pay the salaries, because the income is too low. Generally I think if the players salaries grow, the incomes should keep up.
Now give me some love!!!! :D