By your logic we should also have tiered rates. Ie. Data in prime time costs more than off peak. The reality is privates companies want to increase their profi

By your logic we should also have tiered rates. Ie. Data in prime time costs more than off peak. The reality is privates companies want to increase their profit, they figure (and have convinced folks like you) that this is a fair way to increase prices. The reality however is over time it enables price increases for everyone.