I would assume that people without savings consumption is impacted greater then someone who has savings to shift to consumption. On the flip side peoples income on the low end are primarily wages, which tend to keep up with inflation.
One of the biggest taxes is one that is not even called a tax — inflation. When the government spends money that it creates, it is transferring part of the value of your money to themselves.
Depends on how the inflation is distributed, but it would certainly appear true today, where the inflation is impacting items that lower quintile earners spend more of their income on.