为推动解决群众家门口的噪声污染问题，共同维护居住小区生活环境和谐安宁，生态环境部推动打造一批“消除杂音、睡得安心”的宁静小区。截至目前，全国共建设完成宁静小区2132个，不断提升群众的生态环境获得感、幸福感、安全感。

Please explain “for lack of a better word” in this quote: “Greed, for lack of a better word, is good.” “Greed is good” is ...