not be above
be not above (doing something)
To not have principles or morals that stop one from doing something bad or unworthy. I'll admit that I'm not above name calling when I get into debates with other people online. He's a shady dealer who's not above ripping off his customers if he thinks he can get away with it.
not be above—be capable of stooping to an unworthy act.
1991 Maureen Duffy Illuminations The copyist was not above turning author or forger and several MSS from this period must be viewed as highly suspect.