Bob
This topic was brought up in another thread a couple of months ago (whether the par of a hole matters). I will agree psychologically it matters. But that is all. Or that should be all.
Take #13 at Augusta. You're sitting 230 out with a hanging lie to a pin set way right. All that matters is whether you feel you can pull the shot off. Par, or how many shots you have taken to that point, simply should not matter in the evaluation of the shot you have at hand. The "shot" doesn't care what par is, or what you lay; it only cares if you can pull "it" off.
I faced this same situation this week in a tournament. Long par 4 into the wind. Blew the tee shot right into a lake, dropped to a sidehill lie, checked the yardage (238 to middle), pin set where it looked like it was in the water it was so far right. At that point, if I was concerned about making a double bogey, or worse, I'm cooked. That didn't matter to me. What mattered was whether I felt I could pull the shot off. Of course I didn't think that was prudent, so I layed up and wedged on. (It helped I wedged to 2 feet and made 5.)
So, psychologically it does matter. And for the excitement factor it matters. No doubt eagles are more exciting than birdies. But a 3 is a 3 is a 3, no matter what we "name" it.
Maybe I'm coming at this from the player's perspective, and maybe we've both hit on what is so great about this game. It is so psychological, and "par" does matter a great deal to us (a 3 putt on a par 5 reached in two just doesn't seem to hurt as much as any other 3 putt, right?). But one of the hardest things to do in golf is to overcome the psychological demons, and play what is in front of us, no matter the par.
And I agree that to the architect par matters, because he knows it matters to, and tempts, us. But should it?