Trust me, grades literally do not matter, it's not medicine or law.
I've made it to finance, which sucked by the way, with top grades from top universities but didn't really need that. Now I'm out of work and being presented job offers which I'm afraid to take, and my grades do not matter. If anything, I wish I studied a bit less and partied a bit more, or at least lived my student life more vividly, or literally anything outside of library.