It's kind to buy a gift for someone you love.
John's wife Mindy wants a diamond ring for her birthday.
John wants to grow his savings account.
John puts some of his paycheck in savings and uses some to buy Mindy a cheaper diamond ring.
John puts all his paycheck in his savings account and doesn't buy Mindy a gift.
Mindy is very happy and loves John a lot.
Mindy feels sad and unloved.