The meaning is not in the work—it's in you. You can always find ways to connect more to things you value while at work. That makes it personally meaningful. If "creativity" is a core value for you, but your job is not "creative" on paper, there are countless ways to pivot toward creativity. You can draw illustrations for a presentation. You can redesign a document template with good typography. You can split a complex spreadsheet into clear tabs. Whatever you do, there's a way to do more of what matters to you.

And if there really isn't, get out.