James Tiberius Kirk was already one of the greatest hero's ever. Now he's just going to be remembered as some d*ckhead who some how went from cadet to Captain because someone had no idea how to write a movie script or took the time to care.
A few explosion, almost naked women, an engine room that looks like a distillery, who cares if the plot line was implausible and filled with holes.
Captain Kirk was a guy who constantly disobeyed orders (a dick), endangered his crew because he always ran into old enemies and usually won because the bad guy made a fatal mistake, or because Spock or Scotty bailed him out. That's not a great hero, that's dumb luck. I don't see how your description of the reimagined Kirk is any different than that.