"I descended through all of this and out onto the freedom of the street. I spent as much time as I could spare in these random walks, tasting city freedom. Every street corner was a choice of paths; every store window an opportunity to buy, steal, look, ignore; every stranger might represent friendship, love, murder. I wanted it all, all the options at once. Not possible now, of course, but with enough money, enough power"
Tik-Tok is enjoying his freedom after not being a mere house robot anymore. In these lines Tik-Tok explains his motives and choices in a very simple and clear way. With freedom comes the ability to choose and he wanted to be able to choose everything, to make choice because he wants, not because of what his master wants. Being a bystander that looked and bowed before choices of humans he is overwhelmed by his freedom to choose now. He doesn't divide the moral from immoral, good from bad; everything is just a choice to him and he wants every choice. This sums up his thirst for power and money, but it doesn't explain his hatred for humans. That hatred has a root somewhere else.
"The idea of turning moral decisions into digital data (and screening out wrong ones) was powerful and attractive. People wanted it to be true. They wanted robots incapable of sin, trustworthy slaves. So of course the manufacturers of robots would invent imaginary circuits to make it so. _Ecce robo_, they'd say. Here is a happy slave with a factory guarantee of trustworthiness."
The fact that Tik-Tok is able to walk on the streets freely, being ignored even when he told his intentions out loud is explained in these lines. People want to believe that robots are harmless, that they would never turn against them, so convincing them that this was the case was easy work. He touches on the idea of morality, morality is purely a human trait and concept and not something that could easily be digitally engraved into a machine.
