Originally Posted by raimius
Yes, there is. A tax is very different than a tax break. Tax credits are discounts/subsidies. The penalty/tax is not a discount.
If your entire income is taxed at 100% and the only way to retain your income is to conform to a list of government mandates in order to have the benefit of a deduction, discount or subsidy, the mandated behavior is just as effectively enforced. Both involve use of tax to compel or effectively prohibit behavior.