Are you a consultant because you want to earn a big paycheck without much stress or because you want to make teams better? For me, the latter comes first.

I even go so far as to tell the client when I believe that I can no longer add value equivalent to my cost: when they no longer need me. My job is, ultimately, to become superfluous: to make them better then get out of the way.

Now if I was engaged because of that delusional thinking, that's another problem...