in virtue of (something)
Due to something; because of something; by reason of something. In virtue of your years of hard work and experience in the company, we think you would be well-suited to a managerial role within the company. I know that you feel the need to intervene in virtue of your role as a father, but you need to allow your children a greater degree of independence.
by/in ˈvirtue of something
(formal) because of something: I was invited to a party at the embassy simply by virtue of being British.