There is a relevant point made by Mufti Taqi Usmani Sahab(DB) at, I think, two places in his travelogues. He attributes this observation to his father Mufti Muhammed Shafi Sahab (RA). Muft Shafi Sahab (RA) said that whenever you see non-Muslims prospering then they must be doing something Islamic for the falsehood does not have the property of prospering. So whenever you see sucess in a society then some elements of truth are being implemented there.