It sounds like either way it would have went nowhere.
Out of all the artists Dr. Dre signed (Hittman, King Tee, Eve, Rakim, RBX, Bishop Lamont, etc) how many has he actually put out directly? Eminem, Truth Hurts and Busta Rhymes, and Busta had the advantage of being an established artist.
50 was through Slim Shady and Game was through G-Unit.
It's too bad that Dr. Dre didn't sign him and didn't put out an album with him. The remix he did of that Dre and Jay-Z was nice.