You. But only if you choose to. If you don't, people probably won't even notice. But you will be average. If you do, you will certainly stand out and be extraordinary. But that's not why you give. You give to express your art. Because it's what you love. And, of course, because you give, you will inevitably get.
What if you own a restaurant and you give a free meal every now and then to your loyal customers?
What if you're a carpenter and you do free work, asking for nothing in exchange?
What if you mowed someone's lawn out of the kindness of your own heart?
What if you gave something you've labored hours on away for free?
Do this, and I promise you won't be a starving artist forever. The market always finds a way to reward good art.