I'm not very educated on economics, but a few things seem pretty obvious to me. Maybe I'm missing something, but here goes:
The only place the value of the dollar matters is at the interface where things are bought. The dollar can be exchanged in large quantities for other things fairly easily in the stock market, even actual materials if you want to pay for storage. So, even if the value of the dollar fluctuates, if you have a handle on it, you beat inflation because the goods that would be bought with the dollar remain just as valuable.
My point is, all inflation does is make the interface where things are bought more difficult to deal with. When I go to the store, things will slowly rise in price and I have to factor that in. Every few years minimum wage will need to go up, or stay the same if they want it to be lower. It doesn't effect anything beyond that.
The biggest problem with this is that it travels in a way that suckers the poor out of money, it's a tax for being poor if you will. When you have lots of money, the cost to manage that money in relation to the amount your managing is relatively low. You are always far away from that "interface" but if you don't have lots of money, you're focusing on making ends meet and can't go around on the futures market or what have you. So you put your money in a bank account, where it slowly increases in value but not beating inflation while everyone else who has money makes a profit of you.
That and pennies cost more to make than they're actually worth, or even do math with. Shopping at the store forces the cashier to spend time doing math that isn't worth the minimum wage they're paid.