Maybe we voted for them because we think they would make good decisions for the community if they got into DT1.
Obviously, there are some users on the list I have made who are trusted in other ways - be it involvement with developing bitcoin core, moderators, etc. However, the list I have made above is composed of DT2 members, the majority of whom are DT2 members based on a singe inclusion from a DT1 member, and not from a community vote.