Its not about me but about the system as a whole of course. Likewise, it isn't about you. You are not the one paying for everything, we all do. If we optimize for lack of purchase power there will only be economy of scale for necessities.
It just struck me that we might be that we are missing the most important part of the topic.
You are not just saving whole cents left and right but in the process you will also be required to emotionally detach yourself. On the large scale the choice is really between engineering empathy vs psychopathy. If we minimize cost and maximize what people have to pay we cant be all to concerned with peoples well being.
I've had lots of other jobs, I can easily earn twice what I get now. I just one day had the rather silly realization that doing a lot of cycling to improve my shape is a lot of work. Its not work like a job, you have to push yourself until you cant do any more if you want to make progress. It seemed odd to do work without getting paid. It clearly is possible to be both productive and physically active.
You can imagine what it looks like, without a money driven thought process I do 2 times the work one could expect from an employee. You would think it is enough but that is not how the system works. There are other employees who are suppose to get more work out of me, they have no idea about the work, are really unfit and earn a lot more. My effort doesn't make cleaning cheaper or result in better cleaning. They just scale down the number of workers, get larger bonuses and the owners of the company make more money. With 2/3 already going towards the bureaucracy the 1 cent extra is really a joke.
For the people in those jobs to feel productive they have to emotionally detach themselves. I have to buy cheap products made by wage slaves who are probably much worse of, they might not be able to sustain themselves. I'm similarly forced to not overthink it.
Its not impossible for the animals I eat to see some daylight. Its not that if we abolish child labor or slavery the economy collapses. People are just making a lot of money telling that story or they need to tell themselves that in order to cope with the system.
If you can spend 1 euro extra and double a hundred peoples salary the money is the least of your concern.