Actually there is little difference between the representation in the popular vote and the EC…
The electoral college gives voters in smaller states more of a “per capita” share in each electoral vote than it does in larger states. So while there might be “little” difference, however one chooses to define that, there is nonetheless a difference. And that difference happens to give smaller states more of a voice than they would otherwise have.
Let’s look at West Virginia, which has something like 1,254,525 registered voters and 5 electors, giving that state an elector-to-voter ratio of 1 to 250,905.
Compare this to California, which has more than 18,200,000 registered voters (more than the entire population of 46 states) and 55 electors, giving that state an elector-to-voter ratio of something like 1 to 330,909. (I couldn’t find more precise stats.)
So while West Virginia has 11 times fewer electors than California, this is an improvement over the 14.5 times fewer voters they happen to have. And each voice has more of an impact on which set of electors happens to be chosen by that state.
But the greater impact of the electoral college is probably best understood by this very election. As of the vote counts of a few days ago, Donald Trump won an overall simple majority in no fewer than a combined 99.968% of all US counties and county-equivalents. One hundred percent of Clinton’s popular vote majority came from the majority she acquired in Los Angeles county.
Without the electoral college, Clinton would have won by 1.2 million votes. But with it, which takes into consideration the “little difference” of geographic vote distribution, she lost.
Also, let’s not forget that swing states change. The aforementioned West Virginia, with its “little difference” in advantage given its electors, actually was incredibly important in the 2000 election. Bush flipped WV from blue to red, which made the Florida vote that much more important. Had he not done so, Bush could have won Florida and still lost. And I believe that no fewer than 48 states have determined the President, something that probably would never be possible without the electoral college.