Earlier quoted context omitted.
The FBI as every state organization is a position of power give by the state and it's citizen to protect them from illicit activities. All of them, not some of them . When the FBI engages in unethical and illicit practice, it's like stating that rules do not apply for them. Given for granted that they are in a position of power a priori, it's hard for me to see how this is good thing and how accountability can be hel…
It is unethical or illicit for me to tap someone's phone or install malware on their computer. That doesn't mean it's illicit or unethical for the FBI to do so. The whole point of having a state is to trust it with powers that individuals should not exercise on their own authority.
Also to address collective-action problems (like defense).