if you dont bet you wont build pots, therefore when you hit your oppoennt wont have odds to good to fold his hands.
But of course you know that right?

If you do is c/c with draws the start betting when you hit you arent going to win big pots and people will start figuring you out real quick.
In other words, if you dont balance your range and betting range then your game will have no balance and will suffer and be exploitable.