To each his own. I have Armadillos and carry a tube, patches, and tools. I also carry clothes and food. If your commute is short and you can take the bike on a bus if you get a flat, then I guess you'll be fine.
I will always carry the stuff I carry, because that's who I am, and the things I carry represent my core values. We can both coexist on the roadways, no problem.
Happy riding!