Little known to most people, is that the two biggest contributors financially speaking, to the state of Israel, are the United States, and Germany. It is a myth, that the U.S. is the sole provider of financial aid for Israel. The truth is almost from its birth, when it could, Germany has always provided most of the funds for some of the cold war, but then the U.S. took over the role of both funding and weapons provider.
If Germany and Russia build reactors in a high risk area such as Iran, in both respective countries both corporations are likely to make a killing of the insurance if Israeli jets blow them to hell. Building reactors in such dangerous, far away places, is hardly an act of kindness, especially with both country's economies experiencing a downturn needing a much needed jolt.
If the nuclear reactors are up and running, Iran will owe them money and they get funds that way, if they are blown to hell, they collect on insurance, either way they win, and Iran loses.
I would not put it beyond them.
food for thought.