Speaking from my own experience, you can get a "full" scholarswhip and attend a school you and your family could never otherwise afford, and still need additional money.

If Obama's stepdad was indeed a highly-compensated employee of an oil company ~ and I have no reason to doubt that, even though I never heard about it elsewhere ~ an academic scholarship would probably have been partial, due to the lack of documented financial "need." In such circumstances, the academic scholarship is (a) an honor and (b) a proportionally-appropriate financial break for the family, lessening but not eliminating expenses.

If young Barack was awarded such a need-based academic scholarship, but nowadays implies that is was "full," in turn implying a less-than-affluent background, I suppose that might justifiably be characteried as an untruth-by-omission.

Pretty small stuff compared to the multiple outright lies being promulgated on a daily basis by his opponents.