A zoomed image of a computer screen showing the Amazon logo is seen in ViennaVia Alistair Barr SAN FRANCISCO (Reuters) – Amazon.com Inc elevated inventory compensation for key executives in 2012 as the sector's greatest Internet retailer stepped up competitors with Apple Inc, consistent with a regulatory filing on Friday. withIn the submitting with the Securities and Trade Fee, Amazon introduced Apple to the peer team it uses to lend a hand decide how so much to pay executives. …