It doesn't matter that the top 8 players were QBs. It doesn't matter that you draft 2 QBs. Ultimately there is almost no difference between this group of guys from a Fantasy Football perspective:
Matt Stafford
Luck
Wilson
RG 3
Romo
Roethlisberger
Manning
Flacco
And the next tier isn't that bad either. Don't look at how many points they score (otherwise kickers would be awesome), look at the drop off from one to the next when you are using whatever projections you want to use.
There is almost no circumstance you should take a QB at the 8th pick. (That would require either Brees, Rodgers, Manning, or Brady to fall to you. Possible but highly unlikely)
You draft the best player available at the 8th pick. My guess is you will be staring at Arian Foster / Ray Rice / Calvin Johnson.
I co drafted a league like this last year with JG's sister. We didn't take a QB until I want to say Round 5. We basically took QBs 16, 24, and 26 on our draft board. BTW, that included Alex Smith.
While everyone else was drafting QBs we ended up with a team with the likes of Ray Rice, Doug Martin, AJ Green, and Dez Bryant
Suffice it to say she dominated her league (I think she lost once all year). The edge that the rest of her team gave her more than covered the minute difference in points in having a below average QB would have.
It is the basic principles of upside down drafting and value based drafting. Don't get caught into "runs" on certain positions. Don't look at total points but point drop offs in your rankings.