Some Wages in Accra aren't making sense

So whenever I'm in Accra, I always wonder how some people survive with the salaries being offered, I mean.... 1500 cedis per month can't possibly be enough? Considering that it's not hard at all to spend 1000 a day. How does a city so expensive have such low wages...? I know people survive but how ? And I know that not everyone makes the same amount of money but offering anyone 1500 cedis for 10 hours of work with only 1 day off a week shouldn't be normal. Whenever I ask my friends about this issue the answer is always " yes, this is Ghana". maybe I don't understand because I'm not Ghanaian but I doubt it's the case