There are so few of us.  Amongst the many tens of billions of humanity, we are thousands.  We could have stepped out of normal society and kept to ourselves.  Let the rest of the worlds live or die on their own like most of the Peloran have.  Most of us took our cue from Aneerin though.  We travel, explore, and meet new people wherever we go.  We help when needed.  In short, we involve ourselves everywhere we go.  And that is why we are usually welcome.