Been lurking for a while, but I thought I'd toss in a quote from Way of Kings that seems to support this theory. On page 307 (toward the end of Chapter 19) in one of Dalinar's visions, the Almighty has the line,
"Act with honor, and honor will aid you."
It seems quite reasonable that this line actually refers to capital-H Honor, in which case it's an endorsement of the Principle of Intent. The Almighty is telling Dalinar to act with honor, so that he will be able to use the powers of Honor.