Motivation is a tricky subject!! Why?
Does incentivizing work? I mean will rewarding yourself or rewarding your team or family, for every task keep them motivated all the time?
The above argument may be correct for linear tasks, where we know the rules and we know the destination, determining the path of resolution is simple and easy, however, getting rewards for these kinds of tasks soon makes you the same as before.
The answer is “Intrinsic Motivation”.
We should have Autonomy while performing the task.
We should have a Mastery of skills to perform the task.
Most important there should be a “purpose”
Here below is an excellent presentation by Dan Pink at TED
Also please see “Define Motivation“