Moshe Rabbeinu did not give any donations to the Mishkan! Me’am Loez explains that reason for this is because Moshe Rabbeinu did something greater than contributing the materials. Namely, Moshe Rabbeinu inspired others to contribute. Our sages say: “Gadol hame’ase yoser min ha’ose” - The one who is the cause of the action is greater than the one who actually performs it!
Your mitzva is important,
But so is the one of your brother,
Great is the mitzva to inspire ______.