Let's give some credit to Bill, ok? How many Vanderbilts, Rockefellers, Astors, Rothchilds, Waltons etc etc did what Bill Gates did? Combined, they have thousands of offsprings and had way more money that Gates' father had.
So yeah, Bill cam from a well to-do family but he also was extremely {insert here}...
The group that spawned Bill Gates was smaller than the entire human population; it means he was one in maybe a thousand as opposed to one in seven billion. If anything that should be encouraging to the average person in society because it indicates that there isn't an uncrossable intelligence or otherwise biological gulch between the average person and success (which would be even harder to change than a social one).
So yeah, Bill cam from a well to-do family but he also was extremely {insert here}...