Dick, you're making an incorrect (and, dare I say, high-handed) assumption that people who use tuners don't listen to their instruments. I use an electronic tuner to 'get into the ball park' quickly, then I tweak the tuning by ear to get it 'dead on' - by which I mean into temperament.

Most of those I play with and around follow exactly the same process.

There's no shame in using a tuner - have you ever tried to tune by ear during a session in a pub, with boxes, fiddles, whistles and bodhrans all blasting away (not to mention bar-flies bellowing in each other's ears)?