That is because once government bodies start collecting income from tax revenues, then suddenly they become entitlements. In other words, they feel they are entitled to those monies being extracted from the public. If circumstances arise to where the monies become restricted or no longer available, then it is the public's fault and ways MUST be found to extract that "lost" revenue in another manner. Sorry folks, but the government clearly believes that we OWE them taxes, fines, and fees in all shapes and manners that they can come up with to extract money from us. Their justification for such vehicles of revenue extraction is usually nothing more then the statement that the "need the revenue". Like we don't need it as much or more then they do.....
