> shitposted from my 8yo phone while driving my $500 car through traffic on bald tires

I mostly agree with you, but some of those "needless" expenditures have negative externalities when avoided. Whether that's processed foods causing heart disease and diabetes that strain public health resources, or your bald tires greatly increasing the likelihood of an automobile accident that could kill you or someone else. Your response takes an opposite extreme that none of this matters, when in fact much of it matters, but it's not like treating it like it matters makes you a better person. We need to eliminate moral value judgements from the equation, while still being reasonable.