Yes, if you listen or read his final interviews during the period he was recording Double Fantasy he was much more down to earth and no longer a radical.
He had also sent a check for a fundraiser to buy bulletproof vests for the NYC Police Dept during the 5 years he was out of sight from the public.
He even talked about how he was now into prayer. Something about having Sean as a child and that affecting his sense of what was important.