Unfortunately, many people are undervalued or underpaid when they’ve stayed at one job for too long. I’ve known a few programmers even, who have experienced the burn of someone new coming in and making 20–30% more vs the one who had been there 10 years (same education/same skillset). It doesn’t go over well with people who are of the mindset that if you work hard somewhere the business will reward you for it. Often times, they don’t.