I think managing money doesnt fully dependent on salary,because if you have habits like gambling or drinking then you cant even manage high salary and one can manage small salaries as well if he spend carefully.
That is what called managing the money in a good way, if you have a small salary and still it fits your needs well and you still save something out if it and sometimes even if you have a big salary you still wont be able to do everything you want nor you can save anything out of it, it all depends on the ways you spend your money.
living don't need that much of money to be honest,with small salary you can still live,the lifestlye is the only factor that make your live consumtive especially if you have such a big monthly salary you will really want to buy anything that is interesting,and the other is those habits that had been mentioned above