Why India is far behind in Olympics?

We came as 4th spot in medal tally in Asian games but we are not even in top 10 in Olympics in Asia. Why no player shows determination to win gold medal. Maybe reason is the mentality of players that if they win any medal they will get crores of rupees, promotions, cars, govt jobs and what not. Look at the players of other countries they do not get anything still they won gold medals. Does this show weak mentality of our players except for some. Should govt not provide these much compensation to them or what's the reason?