Market Garden

Why is it that every time that Monty wanted to do something the Allied command gives into his demands? Over and over again, history shows that he was an overrated general in military terms because of his lack of strategic awareness.  He should have never been promoted to high ranking command of combat troops because of his ineptness.  The battles that he "won" in North Africa were for a large part due to the Axis lack of supplies and looking elsewhere (Russia) in terms of reserve manpower and supply.  Monty's grandiose plan of Market Garden is a perfect example of his personal vendetta to glorify himself and bask in the rays of praise.  He ignored reports, oversimplified his plans, and continuously brought disaster upon his commands, especially in Market Garden.