If the only reason for your job is to make money to feed yourself and your family - then isn't that important in and of itself? Because if you and many like you

If the only reason for your job is to make money to feed yourself and your family - then isn't that important in and of itself? Because if you and many like you are all doing this, then you are benefiting society in a very direct way - one family at a time. I think it would be hard to eliminated these jobs, without any alternative (e.g. UBI or a completely different system altogether. Note: not directly arguing for another system myself here).