Dig into AMD's history over the last decade or so. If after doing so you think this is a goodie-two-shoes "ethical" company, then I don't know what to tell you. This company has destroyed billions in shareholder wealth, particularly under Hector Ruiz (though Rory Read did a great job of taking the stock down from ~$8/sh to just $2 and change). This is more harmful than misstating some memory specs and showing off non-working prototypes at a trade show ever could be.
And if you think that such "shareholder wealth" destruction only impacts a few people, think again. AMD stock is/was held by a lot of mutual funds, employees of the company (who were compensated with stock), AMD retirees, etc. It was AMD management's job to try to protect and grow those people's investments and they failed big-time.
They say things like "Fury X is an overclockers dream" when it wasn't, try to dupe people into thinking Zen will have >40% IPC improvement over XV when they conveniently put that claim under the "data center" box in their slide (meaning the comparison is to Piledriver, their last gen server CPU), they say with a straight face to investors that Carrizo is a super great product and show that it's "better" than Broadwell by showing a corner case (HEVC decode), management rewarding themselves with random multi-million dollar bonuses when the stock hits new lows, etc.
This is just the tip of the iceberg, the more you dig, the more dirt you'll find on AMD.
Anyway, this is way OT so I'm going to shut up now, but if you wanna talk to me about "ethical" companies, AMD is the last example you really ought to use.