I think that’s a valid concern. Bond’s style isn’t superfluous, he’s stylish for a reason.
Bond isn’t tasked with taking down ordinary organized crime families or terrorist organizations. He’s infiltrating nefarious secret societies, megacorps and black ops groups with mind boggling resources at their disposal.
The power players in those groups are most often moneyed- new or old- and are accustomed to noticing subtle details that signal affluence mark one as a peer or outs you as a pretender. “Looking (or otherwise seeming) like you belong where you are” is a powerful social engineering tool and a cornerstone of spycraft.
So Bond isn’t wearing Crockett & Jones chelseas, driving Astons and so forth just because he’s well paid & stylish. They’re essential gear to his missions- they help him seem the part. He can look, sound and behave in all ways like someone who is part of the elite. If he showed up in Monte Carlo in a polyester tux, a Timex and Stacey Adams driving a Jeep, he’d never be seen again after his first day at the baccarat table.
(Which is also a real constraint on what you can do with the character and who you can cast.)
