I am really sorry if this is a very entry-level question, but it has been on my mind a lot recently and I haven't find any satisfying answers. It is addressed only to those who expect our future not to be totally terrible.

Let's assume for a second that we manage to create Artificial Superintelligence (ASI). Let's also assume that ASI takes over our planet. In this scenario, why would ASI not do either one of the following things: 1) Exploit humans in pursuit of its own goals, while giving us the barest minimum to survive (effectively making us slaves) or 2) Take over the resources of the entire solar system for itself and leave us starving without any resources?

Under such a scenario, why would we expect human lives to be any good (much less a utopia)?