Not really, but only because he wasn't really in much of a position to ruin a so-called legacy of his when he didn't really have much of a legacy to continue protecting anymore. His legacy had already turned to sh*t - especially in NYC - even before he chose to fully dig his grave with Trump thanks to the selfish egomania & his being corrupt, a racist (stop-&-frisk, Kerik, & his constantly playing the race card all jump to mind), a liar, a cousin marrier-turned-serial adulterer, etc. Tastelessly leaning on 9/11 during his presidential campaign ("a noun, a verb, & 9/11," anybody?) after having both failed to fix the issues with the FDNY's radios for years prior to 9/11 & then ignored the deaths of Ground Zero rescue workers who went into the pit for months without respirators didn't do him any favors either. Really, his legacy is, was, & will forever be that of just generally being an all-around piece of human garbage. Hell, remember when they booed him on his birthday at Yankee Stadium while he was wearing a Yankees cap? Whatever parts of his sh*tty legacy had still managed to survive by then were just further neutered by his involvement with Trump.
This in a sense....