Having visited Mauritius a few years ago as a tourist, I'd say they're probably missing out on an opportunity in tourism and maybe immigration. Outside the generic, polished beachfront hotel complexes, they seem to treat their otherwise beautiful island as a landfill. I don't think I've seen so much rubbish strewn around the countryside anywhere else. There's plenty there for tourists to explore, but (at least for us) the way the natives seem to treat their countryside was a major turn-off for future visits and recommending the place to others. Admittedly, this was a few years ago, and they may have since cleaned up their act.

(I realise that attracting tourism can be a double-edged sword)