If you have small political elite you will never have stable growth. You might not get stable growth under a more broader politcal system (socialist india was relativly democratic) but much more likly.
See these two books, one from a economist perspective, on from a politcal sienctist perspecitve (both considered top people in the field):
- Why Nations Fail: The Origins of Power, Prosperity, and Poverty
- Dictator's Handbook
The both tell the same story with diffrent words, or maybe one would better say diffrent but overlapping parts of the same story.