Yea that's one of the worst things that really convinced me that the investment banking track was not for me: How utterly pointless the work was. You're spending 100 hours a week updating slide decks to use 14 point font instead of 12 point, and making the titles a different shade of blue. And it will all be read by....likely nobody, maybe someone who doesn't care what the font is. I'd rather grind as a software developer on a feature that never ships--at least there's creative output, and you're learning something.