That's a tough call, cos other variables in connection with jobs and incentives accompanying their employment and performances were not given.
well first we'll have to discover if and who makes his money legally or illegally, cos for some the standards that accompany good moral values doesn't hold water for them, secondly let's consider the attitude of individuals in respect to giving, while for some it's a way of life for others you won't catch them dead giving anything, cos at every point in time they consider a whole lot of things before they give.
So taking into consideration these variables one might begin to understand why there is a difference in the amounts donated by these 2 gentlemen.
Remain Blessed All