2 examples of self-interestedness in sentences

People are your friends from pure friendship and love, not from sponging self-interestedness.

Not that it is impossible for opulence to have genuine friends, but rich people, I fear, must ever have at their heart cankering suspicion to hint that the friendship and love lavished upon them is merely self-interestedness and sham, the implements of trade used by the fawning toadies who swarm around wealth.

2 examples of  self-interestedness  in sentences