Fines are strictly punitive. The only goal of the fine is to change behavior, not to be 'fair'.

It's true that the fines differ per the act, but that's only because the act itself determines how much people would desire to continue it despite a deterrent.

The fine for jaywalking is less than the fine for speeding because (a) society doesn't want to stop jaywalking as desperately and (b) even a small fine of $25 will cause people in cities to follow the rules and not cross the road willy-nilly but with speeding even with the fine you may want to still speed hence why almost all states also give you only a few chances to break that law in a year before they take away your license.

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You're supposed to collect damages on top of the fine.

Which is why John Deer is paying our almost $100 million[1].

An additional $50 million plus FTC oversight for 10 years is to ensure John Deer comply, and to set a standard for further fines if they do not comply. If they continue to willfully not comply, like some people continue to jaywalk or speed, the fines will drain billions or reach a point that the company will be dismantled.

[1] https://www.wired.com/story/john-deere-is-paying-farmers-99-...).