Those are only perceived benefits and are highly dependent on the rider. For me, fenders and a kickstand are a waste of time and just add weight. I've used derailer systems from 30+ years of year around riding and never found them to be unreliable. I do use cargo carrying equipment but keep it to the minimum that I need to get me, my clothes and lunch to work.

There's also a contingent of commuters who seem to be obsessed with setting weight records to earn bragging rights for 'inefficiency'. 35 lbs is portly no matter how you cut it. It may not hurt anything to ride a heavy bike but it doesn't help either.