Snipped by me.
It isn't disordered thinking in a clinical sense. If it was, then even someone who cheated on a history test would be considered to have disordered thinking. Clinically, disordered thinking means pathological thought patterns that effect thought process and content, such as delusions, paranoia, thought blocking, etc. Planning out schemes doesn't fit with that. In fact, disordered thinking in the context of mental illness is often debilitating enough that the person experiencing it can't premeditate and plan such activity.