Options? Fixed-rate mortgages? Salaries that are stated as a number of dollars, not a percentage of company profit? "We will charge you perhaps a bit more / pay you perhaps a bit less but in exchange we will take the risk of the real value fluctuating and your number is guaranteed" is a super common deal.

More fundamentally, why should they do it? Because they think it'll get customers, and as a big company they can absorb the risk.