Dr. Robert Hare is describing what a psychopathic corporate culture might be like, not what all corporations are. 

Corporations can have personalities if you will, based on the character of their leadership, and the traits and tendencies which they tend to seek out and reward.

Governments may have the same character traits, whether they choose to call it culture, or tone, or philosophy. Certain behaviours are rewarded, and others are suppressed and discouraged.  Quite often a few like-minded and powerful personalities may set the character of the organization, and choose subordinates who are either servile or of a simple mind.

Otherwise corporations are not people, and do not deserve the rights of people because it grants to the corporation mangers a power that makes most other individuals unequal under the law.  It is an extension of power and rights by proxy, greatly leveraged.

If an individual has a voice, the individual managers of a major corporation can obtain a much greater voice, one applied by the power and money of a large organization.  These are the modern übermenschen that we are unwittingly raising like titans over the world of real people. 

And when they are singularly amoral, or focused for anti-social purposes, or criminal activities, the resultant damage of which they are capable can be devastating, not only to individuals, but even to towns, cities, and small nations.