More like governments and their intelligence services frequently have use for illicit drug networks. Such as they're access to large supplies of money (hard currency), their ability to generate more of it, and to move it around. This need is even greater for governments under sanctions.
There are other benefits to maintaining connections to black market actors, but money is probably the biggest factor here.
Can't wait for all of the concerned users to start screaming about ITAR...any second now.