My brother is a electrical technologist, had worked in private sector for years maintaining phone systems through out the world. including south of the border. He was offered a promotion did not like the lifestyle quit the position. came back to his home base, while unemployed joined military found renumeration was similar. house paid for lives alone. Happy with what he has. Promotion would have meant extra training. including things like camping rough in middle of winter stuff he had no interest in. Either way it was not about money. When he travelled the world all expenses were paid. He me watching a friend break their leg on a skiing trip. Told him it was time to go home.