The main problem about iconic buildings is that it is easy to get carried away with the object, and forget what makes it work for users, not only for broadcasting. Think of it this way, if your point is to make a writing device, you decide to call it a pen, it looks sexier than an iphone, but in the end it turns out the ink won't work because you forgot to let some air in, what was the point?
Let's just keep in mind the basics are not prejudice, the basics are some of the simple things that makes something go from cheap to bad. The other thing we must keep in mind is that an icon is not just about saying fuck the template, or embellishment of the envelope, icons are built from the bottom up. For designers/architects it goes from the basics, to the story, to the product. If one fails miserably, the designer failed at everything.
Most architects fail, that's why the profession is in deep depression. Most architects just draw, forget about design. Most architects blame everyone else for failures, rather than themselves. Most architects don't give a fuck!
For the few others out there, remember, be conscious. If you do it just because, or without an understanding of the implication of the technique or method, trust me, you will fail just like most. "Not too careful, but not too careless either". - When in doubt, a tablespoon of carelessness might be better, but just like salt, don't get carried away.