You're basically critiquing a chart showing how purchasing power is decayed due to inflation because it isn't adjusted for "baseline" inflation. That doesn't make sense.

And yes, earlier variations are more impactful because compounding.

I will say that a better representation would be a logarithm of the inverse. The problem with doing it this way is that later changes look very small. $1.00 to $.99 is the same y-axis delta as $0.05 to $0.04 but the latter is very different.