Indirect Request
Very rarely we see people who are committed and passionate in what they are doing. When we come across such personalities, we really feel happy. As a gratification we do some promises to them. These are called indirect request. This is in parallel to one of the teachings from Bhagwat Gita. It says following 'Do your duty and do not expect any rewards for that'. It means that the rewards would automatically follow.
This is true in any of the successful stories we have read or seen. For the first four years Google, the Search Engine giant did its duty of fetching the most appropriate results for any keyword given. But after that it is history. Had Google thought of rewards in the first place, then they would not have been so successful. So it is always wise and prudent to be focussed on the action than the results.