I'm not gonna say what's what regarding this undefined term "impact" but grodt's latest (riaa, US) certification was 2020 and that was 9x.GRODT sold 12 million copies worldwide in its first year of release. So yes, it did have more impact than an album that has taken 8 years to reach the same milestone.
That's 17 years to 9x, Kendrick about to do 9x in less than half that time.
But of course, like man is saying. We consume music in completely different ways.
One important thing though is that Kendrick has been hot for 13-14 years straight. 50 fell off after 4-5 year.