Backwards Translation: "Self-Willed"
任性 (caprice).
The internet slang 任性 is short for expression 有钱就是任性 (Baidu Baike), which refers to the phenomenon that rich people make &quot;capricious&quot; decisions because they can afford to make up any negative consequences with money, and sometimes they deliberately make poor decisions only as a setup to show off their power of wealth.
Another common variation of this phrase is 有钱，任性.
A popular English translation for this expression is &quot;rich is bitch&quot; or &quot;rich as a bitch&quot;.
For the usage in Li's work report, here is a reference: http://news.sina.com.cn/c/2015-03-07/115431579527.shtml

“任性”从去年开始成为内地网民的流行语。他们用这个词来讽刺富人的娇生惯养和随性而为。
据香港《南华早报》网站3月6日报道，李克强总理在全国人大会议上作政府工作报告时使用网络流行语“任性”，引起内地网民的关注。
谈及简政放权时，李克强5日表示，“有权不可任性”。此话立刻引发网络热议，被网民无数次分享。
　
《人民日报》微博称，报告起草组负责人透露，这句表述是李克强亲自加入报告里的。
“有权不可任性”3月5日占据中国各大新闻网站的头条，成为多数媒体解读李克强政府工作报告的醒目标题。