Thank you for this.
The system was founded to make sure that the 'opulent' (rich) class ruled over the 'masses' (the people) as advocated openly by founding fathers ( bar a few) and specifically, architects of constitution like john adams.
These people believed there would be chaos if it was a democracy outright, because then the landless peasants would make reforms for land distribution from the mega landowners (aristocrat class) to the poor people. The founding fathers, many of them extremely rich wealth owners, were ok with British aristocrats' lands being redistributed, but not theirs. So, they pulled the reins at that point.
So you ended up with a 'senate', where rich, wealthy and old men rule, and a travesty called 'electoral college' - which makes it possible for a party getting minority votes to rule over the majority.