If you really want to make Qatar a great country, then make the poorly paid workers get salaries on time, get a shine on their faces and see them smiling on their achievements.
The English carry out beautifying their city because they live there now and will live there tomorrow and will live there forever. Foreigners who form 80% of the population of Qatar don't know if they will have a job tomorrow when they land at their office.
Good idea, though!