No, they're not, and I do admit that stating that someone so dedicated to power must secretly desire to be dominated is not only a gross generalization, but also borders on cliche. That being said, I still thought it was funny, so I went with it.
Now here's an item I struggle to wrap my head around. I'm curious as to why we must identify towers as inherently phallic. Space constraints demand that buildings be taller than they are long/wide. Unless you want a sprawling, shopping mall like ediface, it's going to be built upwards. I don't think that automatically has to make it a penis replacement.