Adam Smith on the non-profitability of slavery--

It appears, accordingly, from the experience of all ages and nations, I believe, that the work done by freemen comes cheaper in the end than that performed by slaves. It is found to do so even at Boston, New-York, and Philadelphia, where the wages of common labour are so very high.

Adam Smith, The Wealth of Nations.

Take note--

And that is why the Burmese junta is flailing as well as failing.