Work gives our lives meaning. There may be other sources of meaning but work is a big one. It’s a service we do for others, even though we may have self-interest in financial, emotional, intellectual, or other forms of compensation.
You've been had. Work is a calculated tradeoff of time to support/gather wealth yourself, your loved ones, and your heirs to ensure your line's continued security; you can't use it as a complete meaning unto itself, or as a way to offset the guilt of a life of completely empty hedonism. In industrialized work, there is nothing special to what you do for the world, and you won't be missed but for the immediate moment when you are gone. It's something you can have fun doing, and perhaps have pride in doing well, but how many websites you made that were thrown away within 5 years won't give you any peace on your death bed.