You're struggling to keep up...
There is a pattern here, I hope you are following along.
In this era, hopefully you know what that means because Hardline didn't seem to get it either, elite RBs do not win Super Bowls. However, elite QBs and elite defenses do. Okay, we good? You okay? If your brain is frying, take a break and finish reading the rest of the post. Now let's keep going, champ.
And no, it can no be made about "a lot of positions" - again, I can point to nearly every position on defense and on offense outside of skill positions and show you that teams in THIS ERA have had elite somewhere on defense/offense in the trenches, in the secondary, on the o-line, and at QB.
Elite RBs and WRs do not win you Super Bowls in this NFL. You can get by with just GOOD talent there or even just JAGs. Yet again, you need either a top ranked defense or an elite QB to get a trophy.
Make a list of elite RBs and WRs that have won in this era. If you can't, you have no point. NEXT!