I've never understood the fascination pilots have with comparing themselves to doctors. Doctors have over a decade of higher education along with an intimate working knowledge of biology, chemistry and physics. A degree in mediveal poetry still allows one to cheek the box and be a pilot. Pilots are trained through practice and repetition to complete tasks. Anyone can be a pilot, but most people could never be a doctor. It's a ridiculous comparison. Not even apples and oranges.
Even if we did somehow cause hell to freeze over and double pay at the regionals, we'd still be regional pilots fighting over scraps from the mainline partners. We're completely replaceable by whatever company can do it for a dollar cheaper. Making it to mainline is not just an ego/paycheck thing. It's also about a slight modicum of stability as well as being treated like a human. No regional will ever be a safe place to call a "career".