What does Psalms 17:14 mean?

Use your hand, Lord, to save me from people who only care about this life. You fill their bellies with what they want, and their kids have plenty, even leaving leftovers for their grandchildren. Psalms 17:14 - Modern Text Bible

(The psalmist contrasts their own trust in God with people who only live for material things, noting that even though those people seem to have everything, their focus is shallow.)