Competition in this country drives the pricing. If a business can get more sales by offering a cheaper product they will...it's just a normal course of action.
Just think, if corporations, businesses can eliminate the huge cost of doing business from payroll taxes (to some degree), if they don't have to pay the huge corporate taxes (less lawyers employed to figure out the fine print), if things were simplified and allowed them to do what they do best, everyone benefits. More research and development, faster inovation, more people employed, higher income, more disposable income, more consumption, more taxes collected. Yeah, sounds like trickle down economics, Reaganomics...but it works.
The whole system of income tax as it sits today is geared to punish achievement by business people. Remove the punishment, and everyone will benefit. Remove the victim mentality, empower people to succeed and the economy would know no bounds.
This to a greater or lessor degree is a supply and demand economy.
Are you also implying that corporations will no longer have to pay any taxes on the products they buy? Will they be exempt from the sales tax on the products they purchase and consume? If they are, then the portion they paid in the past will shift to the individual and eat up any "price reduction" I might see from their savings. If they aren't exempt, than they haven't realized any significant savings.