On one count, you are right, but way off the mark on two important points.
1 Yes lots of people dont know about it. But that is what gives you the cutting edge, that is what sets you apart from the rest. The corporate world is gradually seeing the benefits in project oriented management approach particularly as espoused by PMI.
2 No it is not oriented towards software developers. The truth is that they are more willing to experiment new ideas, even in management. Project management is a modern management approach that aims at ensuring that the work defined for a project are accomplished within time, quality and cost constraints. This applies to projects from IT, construction, medicine, education etc.
3 Did you waste your money? Well I think this stems from the misconception that there will be an immediate reward other than improving ones competency in the feild. Depending on your company's project management maturity, you can get an immediate recognition and vice visa.
The beauty in PMP certification is that the PMBOK upon which the certification is based can be applied on projects accros all deciplines. However, to hone in on the specific needs of some application areas, PMI has developed supplements to the PMBOK like the Construction Extension to PMBOK, Government Extension etc.
The challenges you face working in an evironment where there is no PM culture is not isolated, you should visit the PMI website and find articles on how to build PM awareness in your establishment, but first you have to be the PM light with some enthusiasm.
Gregory Akhibi
Clearwaters Consulting Ltd