有利无弊yǒu lì wú bì

can be of nothing but benefit; have everything to gain and nothing to lose
❍ 马慕韩知道自己的厂设备比较好，出产成品质量高，如果检验，可以升级，对兴盛纱厂是～的，而且公开拥护政府措施，更可以落一个进步分子的美名。(周而复《上海的早晨》 Ⅰ—258) Ma Mu han knew that his own mill was better equipped than most and that his products were of high quality; examination for him would mean upgrading and could be of nothing but benefit to the Xing Sheng Mill; and furthermore by publicly supporting government measures he could heighten his reputation as a progressive even further.