Consistency and flow, simplistic yet memorable, sophisticated yet modern, the word itself "workwealth" when said in one flow, it sounds as if your working wealth, yet to still confide in the "+" the k in work and the w in wealth come together to flow consistently but you still have the + sign representing the company name.
The slogan also reads in two ways, it say A+ in professional development, but also reads as, A plus, in other words an addition to professional development.