Quick answer
Two people hold onto two different things. The verse sets grace against force and lets the comparison make the point.
Read both lines
The same verb governs both lines, which is what ties them together: she retains honor, they retain riches. The parallel invites a comparison of what each has managed to keep, and the book has already told the reader how it ranks those two. Honor here is standing among people who know you, the thing money cannot purchase and ruthlessness reliably costs. The verse does not say the ruthless fail to get rich. It says that is all they get, which is the quietest form of criticism available.
Related: Proverbs 22:1 · Proverbs 11:28 · Proverbs 31:30
New King James Version®, Copyright © 1982, Thomas Nelson. All rights reserved. Full copyright information. Scripture provided by API.Bible.
Go Deeper
If this verse has been used to put weight on you that it was never carrying, ask about it directly.