I don't think its just about the stress of being commander. People still have team work, commanders sometimes still buy things for marine. It just makes it a lot easier in publics, when you've got someone who is dieing all the time, from consuming the team resources unfairly.

Also when playing a PCW last night I was ordered by my comm to buy more mines and welders because "I am just a waste of a shotgun", he was a little bit upset with me.

It's more democratic, as it allows players to opt-in to such things, I've bought guns for my team mates before as a planned saving for dual exo was never going to happen.