Or else it didn't catch on because people didn't like living in them. I assume you're talking about this:

http://en.wikipedia.org/wiki/Dymaxion_house

Evolution contradicts the desire for smaller. Consider Peacock tails, the longer they are and the fuller they are, the more likely they are to mate, because peahens like them -- even though rationally, they increase the likelihood of death to predator.

This kind of crazy peacock behaviour is the exception rather than the rule among animals, though, which is why peacocks are so noteworthy. If pigeons had vast feathered tails too you might have a point.

Similarly, it takes a lot of "strength" to maintain a large expensive home and accumulate a lot of unnecessary stuff and the chicks dig it. A guy with a fast car, excessive spending, and flashy clothes will go home from the bar with a girl before the geek with meek clothes and spending way below his means -- even if he is 1000x smarter than the flashy guy.

You sound very convinced that intelligence is what women should be selecting for, rather than being one of many traits that is nice to have in a potential partner.

Personally I'd work hard to live in a big fancy house and drive a cool fast car even if there were no women in the world, because I just like 'em.