There doesn't seem to be much in the way of a population on the planet and the Republic has very well defined laws against slavery within it's borders.
The planet's main attraction being revenge for an ancient defeat/slight mirrors the Falklands/Malvinas War (it also mirrors the Sith's return/rise and fall in the saga as a whole).
When the Argentines attempted a diplomatic solution for ages but the British kept kicking it into the long grass and the islanders didn't want to join the sort of country that pushed nuns out of airplanes. The British didn't expect any sort of invasion.
The Junta seized the islands hoping that patriotic swell would boost their standing back at home.
They expected the diminished British military to not respond and the issue to be bogged down in the same sort of international diplomacy that had worked against them for so long.
The British did retake the islands and the Junta fell but the dispute is still there especially now oil has entered the equation.