Is the whole firing pin bent or just the tip? Does the pin number match the gun? If it does I would leave it alone and get another one if your going to shoot the gun. Getting back to bending it, you could try it yourself or give it to a gunsmith. I had a broken tip on one of my firing pins tigh welded back on and never had a problem since, so if you screw up there is still hope.
The tips are generally pretty easy to straighten out. I've done it numerous times. Put the tip in a hole close to the same diameter and apply gentle pressure in the direction you need it to bend. Go carefully as they are usually pretty easy to bend.
There is a risk of breakage of course and if this is on a numbers matching rifle, I would probably leave it alone and find another pin if I just had to shoot it. Better yet would be to find a m/m rifle for a shooter and leave the matching original in the safe.
I don't know if there's a high risk of breakage, I've never broke one, but when you bend metal there is a chance . Firing pins are pretty cheap. I don't know what a smith would charge to straighten it but it might be worth trying yourself depending on how much straightening would cost. If it breaks then use the money saved on a smith to buy another one, if it works out good for you then you've saved yourself some money and learned something in the process. If you don't feel comfortable trying it yourself, ask around and see if you can find a smith willing to do it cheap or for free. It should only take a few minutes really.