The “ends justifying the means” usually involves doing something wrong to achieve a positive end ...and justifying the wrongdoing by pointing to a good outcome (which is a matter of opinion, usually assessing it from the perspective of a self-promoting and limited group).

The danger in this limited perspective, percieved by a few as a good outcome ...is that, when considering doing something that others may percieve as wrong ...we've already compromised certain values held by others., So, we've already sort of eliminated the view of others ...willingly qualifying on our own what we would consider a 'good outcome'??

Machiavelli: The Little Prince

quote: "Princes who set little store by their word but have known how to over-reach men by their cunning have accomplished great things, and in the end got the better of those who trusted to honest dealing. The prince must be a lion, but he must also know how to play the fox. He who wishes to deceive will never fail to find willing dupes. The prince, in short, ought not to quit good courses if he can help it, but should know how to follow evil courses if he must ... Nothing makes a prince so well thought of as to undertake great enterprises and give striking proofs of his capacity. If you consider his achievements, you will find them all great and some extraordinary ...while his subjects, occupied with these great actions, had neither time nor opportunity to oppose them." 

Wiki has given this assessment: "Hidden within alternate philosophies, there is also hedonistic utilitarianism, as the paradigmatic example of a consequentialist moral theory. This form of utilitarianism holds that what matters is the aggregate happiness; the happiness of everyone and not the happiness of any particular person." or (http://theyliveintherealsenseofthekingdom.blogspot.com/)

The problem with this is that happiness seems to hold more value than right or wrong.  It often mostly considers a covetousness or wanton spirit. And at the forefront of the argument or conflict is that each point put forth has the tendency to focus more on individual happiness, sometimes at the expense or entire absence of consideration of others.  In reality, it does not really focus on the aggregate happiness at all, but instead vehemently targets those who oppose any individually expressed viewpoints.