That's the problem you all have though. Although inflation isn't the natural state of fiat currency even if it has been corrupted to this your purpose should not be to accumulate wealth purely by having wealth. You're not supposed to keep 100 dollars under your bed for 50 years hoping it grows to 5000 or even remains the same.
What you used to produce when you were payed 50 dollars is now produced for 5 dollars in a more efficient economy.
So what happens when you get to old to earn a living?
You live off of your millions you made from all that wise investing? Well that is my plan and it has been working in my family for generations. Some choose a nice bridge to live under.