Talkin' to myself because I am my own consultant
You hire consultants to come in and tell you what your company needs to do to achieve whatever goal you have set (cut spending, increase brand awareness, etc.) and you pay them exorbitant fees to do so. Wayne talks to himself about what he should do, because he is, in fact, crazy. However, by talking to himself he is essentially paying himself, which makes him richer.
Jay-Z has a similar model of making himself richer. Watch Aziz Ansari explain it at the 54 second mark.
To help improve the meaning of these lyrics, visit "6 Foot 7 Foot" by Lil Wayne (Ft. Cory Gunz) Lyrics and leave a comment on the lyrics box