That created money is lent to borrowers, who in aggregate benefit from it more than the interest costs. The banks don't get to just spend the deposits.
Lending out money at the rate of inflation is 0 profit after inflation.
All the fiat currency units in existence are a loan to a bank somewhere. That is over a hundred trillion dollars for the US alone. If you're receiving 2% of $100,000,000,000,000 each year, for money you printed out of thin air, you're not going to worry about the effects of CPI on your monthly budget.
Lending out money at the rate of inflation is 0 profit after inflation.