I have trouble understanding this phrase "If for no other reason (than)..." Actually I've seen the same question being asked on the web, but I still don't quite get it. Here are some usage examples that I have seen so far:
- He will have an honored place in history if for no other reason than that he and Soviet leader Mikhail Gorbachev refused to use force to preserve the Soviet empire.
- There is some value in helping kids understand how coats work, Grotzer says — if for no other reason than the science is useful.
- I understand that John’s living up there now as well and, if for no other reason I should go up and visit everybody, while he’s there.
I understand that the phrase implies that the speaker thinks whatever the reason mentioned here is not the ONLY SINGLE reason. So in a nutshell, is the speaker saying that "there could be some other reasons but the major reason is ......"?