Examples? And I'm talking about examples where the action someone is suspended for isn't job related in any way.
If you want to complain to the NBA about such things, you've had years & years.
10/14/02 - Zydrunas Ilgauskas suspended 1 game for drunk driving.
8/27/04 - Gilbert Arenas suspended 1 game for driving without a license + a misdemeanor concealed weapons charge.
4/6/06 - Rashard Lewis suspended 1 game for reckless driving.
2/1/07 - Eric Musselman suspended 2 games for drunk driving.
8/31/07 - James Posey suspended 1 game for reckless driving.
10/31/07 - Larry Buss suspended 2 games and fined $25,000 for drunk driving.
8/29/09 - JR Smith suspended 7 games for reckless driving (that resulted in the death of one of his passengers).
Law enforcement, politicians, teachers, doctors, lawyers, all sorts of people can get reprimanded, fired, or banned from their career field for breaking laws, even if those laws were broken during their off time and were in no way job related. And even if you're a retail clerk or something, you can still get fired for flunking a drug test because you smoked a little herb when you were on vacation.
Heck, people get fired for things they do on their own time which are legal, or for which they're never charged. Just the list of people who've been fired for posting tasteless or ill-advised things on Facebook is really long. Take the case of Caitlin Davis, NE Patriots cheerleader, fired for her involvement in writing rude stuff in felt pen on a guy who was passed out at a party. A high school teacher in Georgia was fired for (non work-related) posts online which included pictures of her holding glasses of beer and wine, and in which she typed a single swear word. Imagine if the NBA applied that to DMC's tweets.
I'm not saying that bosses are always right when they do that sort of thing, but that's how employment in America is. Get over it.