Let's talk about this N21billion that was raised for GEJ's campaign

So on Saturday Dec. 20th, PDP Governors, Senators, Business moguls, technocrats, multinationals and others donated a total of N21.27billion to support Jonathan's re-election campaign.

What happened is normal and done everywhere in the world...presidential candidates gather friends and associates to donate towards their campaign. But what I don't get is a private individual like Tunde Ayeni, the chairman of SKYE Bank donating N2billion. So, if you donate that amount to the president, is it for something you will get later from his administration or it's just goodwill?