Nope, they probably won't. I've been racing cars for about 13 years, and most teams I know don't have one.
For the most part, bump steer is only noticeable in extreme cornering. I honestly doubt most people will ever tell a difference on the street. If you feel you need to adjust it, and don't want to buy the gauge and figure out how to use it, I would suggest finding a race car set up shop in your area.