Once upon a time in a land far away, we had big people and smaller people, and the bigger people largely took care of the smaller people and the smaller people largely did what the bigger people wanted, and this comic-book characterization carried on for a few millennia. Beneath the cartoonist's rendition, there was a lot of smudgy tawdry goings-on, but in a regular newspaper, you can only get so much detail.
Eventually people discovered tools, which went from simple stuff like big sticks used as clubs on to more subtle stuff like x-ray spectrometry and online marketing, which confused the hell out of early caveman/woman, but is slowly becoming comprehensible to their descendants.