Not really, a higher bounce wedge should stop you fatting less wedge shots. Do you know what bounce is or how it works?
Basically, in a nut shell, it is the angle of the sole of the club, to the ground. The higher the bounce, the flatter it sits. Think of a spade being struck into the ground, straight down at a 90* angle, it is going to dig right in. Think of it being struck across the ground flat at 180*, it is going to skid off the surface. The higher bounce helps to skid the club under the ball.
It could also be your technique (almost certainly is) but without watching you no one can say really. Take a trip over to Videojug.com and watch the tutorial videos from Rickard Strongert. They are fantastic and have a video for almost every shot in golf!
HTH