It seems unlikely that giving someone more information makes something worthless.
You must be pretty deep inside the bubble of the topic, as also the bubble of the content-creator, to be able to evaluate the value of the rating. And that makes it worthless, because most people can't be that deep and follow everything. And the people who are, are more likely re-enforcing their own ignorance.
The Ratio is one of those tools which are making sense when they are fresh, but become corrupted over time, making it useless after a while.
There's plenty of clickbait videos that have horrible like to dislike ratios and you can save yourself time by seeing the dislike bar. This is just removing an important piece of functionality and making the site less functional and less user friendly.
Yes, elections suck, but that's their purpose. Mankind is not able to act smart on scale, but there is the interesting effect that we will act sane enough on scale. Elections usually aim to utilize this balance, because all other known solutions are sucking even more.
And not to forget, in a healthy working democracy, you can't game elections like you can do it with (dis)likes. With online-services, it's relative easy to get thousands of alt or hacked accounts, which you can use to manipulate the numbers as you like.
> There's plenty of clickbait videos that have horrible like to dislike ratios and you can save yourself time by seeing the dislike bar.
How do you know? How many of those horrible videos are you actually watching yourself to confirm their quality? And on how many of them does your own bias comes into play?