Also, we must consider if the $70,000 rangers are working 36hr/wk versus 40, and yes, other factors. Experienced nurses on a whole other coast indeed do make $100,000. Also, $100,000 isn't as much as it used to be. We must consider that there is quite a good number of nurses that do not work full time. As such, their incomes won't reflect being closer to $100,000.
Where certain physicians would make more in remote areas away from the tertiary care, inner city, teaching hospitals, in nursing, often it's the opposite. Nurses often get paid more in inner cities at high level teaching hospitals. There's rotations and shift differential as well. Consider that an RN working 36 hours per week is making $37 per hour w/o shift differential or other factors that may easily be brought in--and only 36 hours. Like in medicine and other fields, the incomes can be on media sites as lower than reality. In nursing there is that kind of income, w/ strong experience; but it comes often at a demanding, leg, back, and bladder breaking way--w/ often little respect at times from others--I won't go there--and patients laying down their stress, anger, frustration, etc on the safest target, and for them, it may often enough be the nurse. The nurse's head has to stay at a higher place to stay good at it and even stay in it. There are a ton of RNs that will only work part time.