A big reason many people have such contempt for speed limits (and this applies almost exclusively to highway roads) is that, as mentioned, the limits and ticketing is done not for safety, but for revenue.
If it were really about safety then the penalty for speeding 10+ over the limit through a residential neighborhood would be significantly higher than going 10+ over on an empty interstate road in the middle of nowhere. Hell, in several states anything over 80 mph is grounds for a reckless driving infraction.
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Current: 2023 GRC Circuit Edition, 2012 C63 AMG P31
Past: (2) 2000 MR2 Spyder, 2017 GTI Sport, 2006 Porsche Cayman S, Supercharged 2013 BRZ-L, 2007 Honda S2000, 1992 Integra GS-R