Also:
Step 1: Build mass surveillance to prevent the 'bad guys' from coming into political power (its ok, we're the good guys).
Step 2: Your political opponents capitalize on your genuinely horrific overreach, and legitimize themselves in the eyes of the public as fighting against tyranny (unfortunately for you they do have a point). They promise to dismantle the system if coming to power.
Step 3: They get elected.
Step 4: They don't dismantle the system, now the people you planned to use the system against are using it against you.
Sounds brilliant, lets do this.