Perhaps the Thais saw through the thin veneer and facade that Marky was promoting about himself. More than likely know that he was/is part and parcel of the same hardcore establishment club. Nothing more, nothing less. Nothing special about charlatans.
Aside this reality, Abhisit was never a darling of the Thai political machine, but instead used, by the ruling elite, as a passing novelty to propel their means to an end.
Those that hold Marky to some high regard need to reexamine and research deeper contemporary history.