I must take issue with some of the comments on this thread. FYI, I'm a RE broker, Manufactured Home Contractor and licensed Dealer and General Contractor. If anything having that much fire power is extremely relevant to just about every transaction I've been involved with.
There's nothing wrong with a RE professional knowing about and understanding construction and architecture. Frankly I'm called upon quite a bit because I have the aforementioned credintails and experience.
I think sometimes we need to think a bit more before we speak.