Honesty?

Today, I found out randomly that one of my good French friends (let's call him M.) is supported by an American church.
Well, will you say, do you have a problem with that?

Actually, yes.

The church in question is very obviously strongly Reformed Baptist. My friend is Independant Fundamental Baptist, more Dispensationalist than the entire Dallas Theological Seminary faculty and certainly not Reformed in his understanding of salvation...In fact, Dawn and I have been members of his church for a little while, until the day a guy said from the pulpit that a Calvinist can not really preach the Gospel (I need to say that M. has never been so radical, we just agreed to disagree and parted ways).

Now, my question is: why would a church that has left its previous denomination over the issue of Calvinism support the work of a non-Calvinist (especially when national Reformed workers live in difficult conditions)? Why would a non-Calvinist accept money from a staunchly Reformed group?

Why is it so difficult for so many to be consistent with their theology?

Why is the current missions system inherently inefficient and corrupted?