CARPETBAGGER
carpetbagger
(noun) an outsider who seeks power or success presumptuously; “after the Civil War the carpetbaggers from the north tried to take over the south”
Source: WordNet® 3.1
Etymology
Noun
carpetbagger (plural carpetbaggers)
(politics, history, chiefly, US) An immigrant from the Northern to the Southern States after the American Civil War of 1861–5, especially one who went South to gain political influence.
(pejorative, by extension) One who comes to a place or organisation with which they have no previous connection with the sole or primary aim of personal gain, especially political or financial gain.
Source: Wiktionary
Car"pet*bag"ger, n.
Definition: An adventurer; -- a term of contempt for a Northern man seeking
private gain or political advancement in the southern part of the
United States after the Civil War (1865). [U. S.]
Source: Webster’s Unabridged Dictionary 1913 Edition