^^ one of our forum member here faced similar issue ( ram not detecting ) due to bent pin after he had installed a third party cpu cooler - he manually fixed the pins
I've mounted and unmounted several intel cpus but have not seen the aluminium coating worn off from the cpu surface so far
Courier people might handle products without proper care and same is true for some service center people as well and some of them even don''t know how to install drivers properly.
BTW, the bottom line is you got a brand new product and enjoy some great moment with it - one suggestion - get a proper PSU ( spend 5k+ ) and Oc the cpu with the H70 - you'll be amazed by the performance of Sabertooth