Opportunistic expat

[Kai]

a person who moves from a developed country to an developing country with the intention of enjoying an easier way of life, often at the expense of the locals. For example, many English teachers in [East Asia] like to convince others that they are serving or sacrificing for the populations in which they live and work for a salary far above local [wages], but in reality, they are [taking advantage] of the people living in the host country.