Who can you think of that does live shows with no pre-programming, or very little?

I can think of 2. Jamie Lidell, and Shawn Rudiman. Lidell may or may not be out of scope of this thread as the music he makes live is not what many people, especially on this forum, would consider to be techno. Rudiman programs his drum machines, writes synths lines and screws with patches on the fly. He's not quite as live as Lidell, but very live in terms of techno performance. Are you saying that unless you achieve that level of liveness it can not be live?

I disagree. It's down to the individual performer. Aside from a tiny number of notable exceptions, most if not all live PAs are done using pre-programmed sequences and sounds, whether they be on software or hardware. I really see no difference between someone clicking in the next sample on Ableton, and someone else pressing a button to change the pattern on their MIDI sequencer. Both are open to laziness and "cheating".

How live the performance is depends on whether the artist is willing or able to react to the situation, to go off on a tangent or focus the set on one part of their repertoire. This all depends on their attitude to live performance and their ability to take risks, and learn their equipment to the point where they can adapt.