A Deep point (in picture).
It means, if you still have plenty after giving much, then your generosity is still little. That is, if only one has little after giving either little/much, one might have been greatly generous.
The words of our Blessed Lord echoes as follows:
“It is more blessed to give than to receive”
An idea: If you have to store up money, let it be not for the reason of luxury but rather so that one day you can disseminate or use it to not only sustain your simple life but also those around you.
Such an intent & Sacrifice might be a little pleasing to God even if we can’t achieve the “perfection” command of “sell all you have and give to the poor”.