Mark Zuckerberg says that even small decisions like choosing what to wear or what to eat for breakfast could be tiring and consume energy, and he doesn’t want to waste any time on such things, so he has a grey T-shirt and a hoodie when required by the weather.
Steve Jobs also had his jeans, black turtleneck and sneakers habit.
Of course, then you risk ending up looking like an idiot in some settings – a chance that Elon or Jeff sees as a bigger risk. So of course, even Mark has to suit up when the occasion requires it.
Elon also has his black T-shirt style, but being a Hollywood celebrity is able to vary depending on occasion. Let’s just say that none of these guys are wasting too much time on fashion, they are not exactly Kardashians.