[yazaddaruvala]

For "ends justify the means" argument to work, we all have to understand and agree to what the "ends" are.

Typically, the "ends" is to "maximize aggregate utility across all actors" i.e. also often described as "the greater good". As shown by your example: "By stealing your kidneys we can give them to starving orphans."

However, when it comes to targeted advertising, the "ends" is "maximize aggregate utility for small and large capitalists". As such the example should be: "By stealing kidneys from starving orphans, we can sell them to temporarily[0] sustain capitalists". Which frankly is a very poor "ends" from my (and hopefully the majority of consumer's) perspective.

[0] Why "temporarily"?: Because the capitalist growth mindset will require more kidneys soon. Arguably, this implies there is no "ends" and therefore it might be incorrect to use any "ends justify the means" argument in this context.