The existence of such incentives requires the broad freedoms we enjoy to pursue our myriad personal goals. It was the deprivation of these incentives and the suppressing of competition among individuals, the hallmark of a growing economy, which brought Communism down.
Since privacy is such an evident value in our society, where technology threatens that value, entrepreneurs can be counted on to seek means to defend it. The major resources they have devoted to encryption in the development of new communication systems attest to the economic value they place on privacy in communications.