Non-certified consultants earn more!
The report indicates that the majority of non-certified professionals were degreed (81%) with 19.6% achieving a Doctorate/ PhD. But I think the more telling story may be that many of the seasoned consultants have established themselves in the business without certification buy through competent work, experience, and good reference accounts. While many senior consultants are certified, I think that the compensation report is an indication that there is no correlation between certification and the value of a particular consultant's time.
Is certification more important for the junior consultant or those trying to prove that they are qualified? Is that why the numbers show those without certs make more?