It is a generally accepted idea that if your hand is good enough to call a bet with, then you are better off betting. (And this is a situation that occurs very often in poker.) The thinking is that if you're going to call a bet, you might as well be the one driving the betting. It's going to cost the same amount anyway at least this way you're in the driver's seat. There is an intimidation aspect that also accrues from doing this whether in the individual hand, or cumulatively, over many hands a general aura of aggressiveness.
