Make schools better instead of Job reservation

If the politicians have their way, there will be reservation even in private sector companies. Towards achieving what end I don't understand.
Do they have the economically backward people in their mind? Then it makes a little sense.
If that is the case, they should instead provide cheaper education for such people.
There are thousands and thousands of government schools in the country. They are in pathetic conditions. Even people who can't afford much, try to send their children to private schools.

The government should work to make these public schools teach better, have more scientific ways of teaching and good syllabus.
If the education in these schools are good, people from all types of backward classes will send their children. Thereby helping themselves out of poverty.