You do understand that Weicker's income tax was an essentially self-interested move to cut his own taxes by 60%....
As an heir to the Squibb fortune, most of Lowell Weicker's income was unearned (interest, dividends) income, which was at the time taxed at a 10% rate in Connecticut. Earned income was not taxed. The Weicker bill subjected all income, whether earned or unearned, to (up to) a 4% tax rate. Thus, Lowell's tax bill was drastically cut.
The only reason the bill passed was that a Wall Street state senator representing backcountry Greenwich, Republican Bill Nickerson, broke with the rest of the Republicans to support his personal friend and fellow rentier Lowell Weicker.
I remember too well. I was there.
Weicker is/was the most loathe some piece of crap ever.