If it includes ability to vote via campaign donations that cause votes, then yes absolutely. Note for instance in the Massie primary, rich donors literally turned money into new votes by prodding a bunch of demented elderly people who never vote in primaries to believe Massie was banging AOC and Ilhan Omar and secretly a democrat (the vote from regular primary voters remained almost unchanged, the delta was almost entirely new voters brought out by a fraudulent propaganda campaign). That's essentially indistinguishable from those rich people having cast the vote themselves.

It‘s not about the outcome of an election but about putting a symbolic to their power.

Billionaires can do what they what without real consequences, this would hurt even if it has no real effect. More psychological