As a friend accountant/layer said: there will always be people coming to us, spending 51k to avoid paying 50k of taxes, and we'll help them arrange that. Legal isn't the same as moral, so sometimes the legal limit becomes meaningless.
If one is going to judge a client's morality by his eagerness to spend more money than his tax bill in order to avoid paying that bill, that same moral lens needs to be applied to the accountant knowingly charging his client more than the client would save in taxes.
Giving that money to your accountant on one hand side you avoid funding the military, on the other you avoid funding things like NOAA, NAA, VA, food safety, and many others.
The impact the NOAA, VA, etc has on a local community of 100,000 is, barring a local employment center, 100,000/330,000,000*$51,000. It's not even close how much more of an impact paying your taxes to your local accountant instead of the government would have on where you live.