I am not sure what illegal activities these businessmen might have been doing.  Neither am I affiliated with them, nor am I in Government to be in the know.  But one thing for sure is they have created a lot of employment in Nepal.  Because of the industries they have started, lot of Nepalis can bring the food to their table. On that basis and only on that basis, I would encourage more such entrepreneurship rather than pull their legs.

- my 2 cents.