It's OK. Leibnitz[1] (who independently invented calculus) would also have had to be doing pull-ups for calculus to not have been invented. Although Newton not having invented calculus might also have hampered his contributions to physics, which would have been a great loss.
Something I just learned about Leibnitz from that Wikipedia article - he was also a pioneer in computing:
"He became one of the most prolific inventors in the field of mechanical calculators. While working on adding automatic multiplication and division to Pascal's calculator, he was the first to describe a pinwheel calculator in 1685 and invented the Leibniz wheel, used in the arithmometer, the first mass-produced mechanical calculator. He also refined the binary number system, which is the foundation of all digital computers."
