A recent news article says they have found that ED is a good predictor of heart health in men. That is, if you have ED, you are more likely to have heart failure.
I know there has been a bit of a debate if cycling is good for your love life. The good: it keeps your vascular system in shape. The bad: you spend a lot of time putting pressure on a very important blood vessel.
Now it sounds like the good outweighs the bad. ED is a symtom of a compromized vascular system. The ED treatments just mask this problem.