"Pecuniary gains" refers to financial benefits or monetary rewards that a person or entity receives. It indicates the earnings or profits that are acquired from a particular source or activity. Full definition
And in doing so, they subordinated their clients» interests to their own for pecuniary gain. (legalblogwatch.typepad.com)
We should not as traditional rulers sell ourselves out because of pecuniary gains. (ghanapoliticsonline.com)
Studies on economic stress and marital dissolution In standard economic models of marriage, pecuniary gains from a spouse play a central role in the assessment of fit of a relationship (Becker, Landes, & Michael, 1977; Charles & Stephens, 2004). (consequencesofworkinjury.ca)