It does show which song is the bigger hit among gp regardless of the award. Fact
No it doesn't. Longevity does.
Mamamoo crushed BlackPink in unique listeners, when they dropped Yes I Am and As If It's Your Last literally at the exact same hour.
AIIYL lasted much longer on the top 100, accumulating more digital points and is remembered as the bigger hit song.
ULs is just one facet among several used to gauge how popular a song is with the general public.
Hype Boy, for instance, will never touch the UL count of Ditto or I Am, but it's threatening to be in the Melon top 10 for a full year, and is now starting to even chart above Ditto.
Longevity > Peak UL numbers.
Another example.
Nxde blocked Antifragile from hitting #1 and obviously had higher ULs.
Antifragile is currently charting higher thanks to much stronger longevity and will be remembered as the bigger song.
All that said.
NewJeans spent 3+ months at #1 #2 and #3 on every single chart in Korea, and the #3 song is going to stay on the charts longer than the #1 and #2 song.
Literally unheard of numbers.
They're taking all the awards.