Mac may have been a bit of a “perfumed prince” but he fared better than Patton as things turned out; Far from a failure.
Patton actually outranked Ike at the close of WWII, due to his wartime rank/promotions remained RA, whereas Ike’s were US rank/promotion and to be reverted to actual RA rank.
Anyway, Patton failed only due to his questionable demise and failure to become POTUS. He had intended to resign not retire from the Army.
Such is life, politics, etc.
What does “RA rank” mean?