Why Martha Stewart?

It's been five years since the economy collapsed in 2009 and so far the only CEO who's gone to jail is Martha Stewart. Not one of the Bank CEO's, not a single Wall Street CEO, has even been prosecuted but for some reason they went after Martha Steward for a stock transaction that was so small it;s hard to imagine how it even popped up on the radar of the Justice Department. They nailed her for so called "insider trading" as if the majority of the big players on Wall Street don't take advantage of "inside" information every day of the week. So what gives? Why did they pick on Martha Stewart and ignore the really big fish who nearly brought our economy to it's knees? Was she just an easy target, some  low hanging fruit that the Justice Department could parade around to show that they were actually going after the law breakers? Frankly I think she got the shaft. Who among us wouldn't buy or sell a stock if we knew someone who knew something. There are all kinds of experts who make a living by using insider information to buy and sell stocks. Every Fund manager has ties to market, financial, and corporate insiders and they all use that information to help them make profitable investments. Everybody who buys stocks has an ear to the ground trying to get insider information. If the Justice Department needed to make an example of someone why did they pick on Martha Stewart? Was it simply because she was so well known or did someone with some influence in the Department of Justice decide to take her down for other reasons? A business competitor for example, who makes big donations to a few powerful politicians? To quote the famous bard -there's definitely something rotten in Denmark! This had to be pay back from someone she crossed swords with.
The fact that she never complained and took her medicine without saying "why me?' may indicate that she knew who sent the message and why they sent it.