Do wireless certifications help the industry?

Wireless to me is as series technologies that are meant to replace the wire with radio. So the wireless certifications should contain the understanding of radio and the components that are required to effectively deliver and manage this media to clients. Sometimes I feel like there is too many certification requirements. This is especially true in my position working for a small Cisco VAR. We don't see an Ethernet or T1 certification. However, I do believe wireless has enough challenges that it requires enough specialized knowledge to warrant a certification program.