This is totally meaningless.
Everyone pays the lower tax brackets up to a point. If a person doesn't think its worth working for 35c on the $1 they just won't. and less jobs will be created.
This is something which won't register to most people. Consider the tax situation of the sole proprietor business man (ie, Schedule C income)...
...I pay the fed income tax, self-employment tax, state income tax, fed intangibles tax. And the money left over generates sales tax or buyer's
fees (at auctions). This puts my marginal tax rate at well over 50%. Add on to this IRS complexities such as requiring depreciation of some
ordinary expenses, & the rate can become the 65% you cite. (At times my rates have been even higher.) Why work hard? I don't anymore.
A consequence of this is the thriving underground economy. I see many people bartering & dealing only in "off the books" cash. This is why
I favor a revenue-neutral plan to get rid of personal tax deductions & lowering the tax rates to the point where tax evasion is far less appealing.