Overclock XFX RX480 RS Stable 1400mhz/2200mhz Temp75c, Is it worth it and will it shorten the life of my gpu or system in general?

Just got my XFX RX480 8GB from Best Buy a couple weeks ago and have been having fun with games Ive always had to play on low or medium. I decided to overclock with WattMan and was surprised how stable it is on stock voltage at 1400mhz and 2200 memory, only gets to 75c too. I'm concerned if its worth it for having everything on ultra or maybe I should drop it down and live with it?

I appreciate any comments, thank you.