Missing the point. When developers dont have to give a shit about resource usage it can become a problem. When every app is using way more ram/memory than necessary it starts to add up.

This is why modern programs and games can barely run on modern hardware in many circumstances. There is no incentive for devs to be efficient.

It's not one program using a lot of memory. It's 45 of them all using way more than they need to. It adds up.