The right comparison is yearly income - $2.062B. From the 10K, TurboTax and Mint are 37% of revenue. Mint is probably negligible, so the income from TurboTax is $0.67B a year or 5x the fine.
That’s if you’re equating one year of income vs 3 years of behavior. The fine is for 2016-2018 in which we can safely assume Intuit made at least 1.5B on TurboTax. So the income made commensurate to the fine is closer to 8x.