Saving will not make us wealthy, but in an emergency, you will have something to get on because it is difficult to obtain an emergency loan from a bank in that time and you will also incur debt. In saving, your goal is not to become rich, since to become rich you need to have multiple sources of income. Your main purpose in saving is so that when you really need money, you can get it. I don't think saving is a selfish act since you save for your future and for your family, so it won't be selfish at all.
I do not agree with the opinion that saving is selfish because they have allocated income for saving and not wasting money to spend on non-essential items, the purpose of saving for emergency needs and financial security for the future, even rich people have money and assets for savings the future because our status is not always rich and the wheel of life can change at any time when we are no longer destined to be rich.