A higher standard than being law abiding? What standard would that be?
I'll let the earlier comment you made stand as evidence against you, projecting your conduct on others doesn't change the facts.
Its called ethical behavior. Finding a legal loophole in the tax laws to dodge taxes in a way obviously never intended but which the IRS concludes is technically legal until the law is later revised would for instance be relevant information for many people. If Romney has not experienced in reasonably recent years the percentage rate of taxation that many people in the U.S. actually have, that would actually be relevant information for some people by the way when he talks about the burden of high taxes on Americans. Among many other points of potential concern, someone aggressive and creative enough in limiting their tax burden may be reluctant to close such loopholes with future tax reform.
As I previous noted it goes beyond merely information about whether he complied with tax laws and also shows his prior financial associations and some information about his business dealings along with the general point of where he made his money in recent years. People might decide they are fine with his positions even so, but its helpful to know candidate x might be potentially biased in favor of industry or company y because they made a whole bunch of money off them in the past.
George Romney is dead. That is not an insult. I find it strange you consider calling a dead man dead an insult.
While he's dead, that doesn't make the arguments he made somehow less legitimate. You're essentially labeling him a returner for giving the reasons he did for releasing 12 years of tax returns, along with effectively George Will and a whole bunch of other respected conservatives who are generally members of the Republican Party for their position on Romney's tax returns.
The claim its about the exact numbers is plainly a utterly false argument again. We don't have any way to actually know if Romney was paying a rate of around 3% or actually above 20% for many of the years in question. The 20% options seems very unlikely given Romney's behavior in refusing to release the information, but Romney is certainly forcing those trying to come up to a conclusion to speculate for the moment since they lack enough data. (We lack the info on how much exactly Romney made each of these years as well as the nature of the income in question, which means you can't come up with a rough percentage with any degree of confidence for any of the years he has not released returns for.)