But not necessarily both.

With my comeback char (who had an awful build imho -- I should have listened to the advice I was given!) I accidentally killed a good align mob that I thought was neutral. Only when I got -30exp did I realise my mistake.

Sloppy, yes. Ignoring align, no. I sacced the gear I was after, have my good away to some random mob in the nearby city (his family) and went and told my cabal leader, fully expecting to be booted. So align adherence was there but sloppiness was too.