The article said that many such donors see anonymity as the key to their strategic success. Christian conservatives tend to believe that life hereafter is more important than this life, so Christian philanthropists, as a rule, give to evangelistic causes. Emmerich is a member of a secretive group of conservative Christian philanthropists called The Gathering.
Christian philanthropists differ from their non-Christian counterparts in other ways, as well.
For instance, some monied Christians believe they should dispose of all their wealth, a concept familiar to television evangelists. If you use the term, they don't know what you are talking about. There is also a major difference in the types of causes supported by conservative Christian philanthropists. That's not where the bulk of Christian money goes. I'm seeing more support for conservative think tanks that aren't necessarily explicitly Christian, but support Christian values.