I believe this is a futile and energy-draining activity. Spend time criticising what others do and don't do is merely an excuse to avoid looking inwards—which demands effort and it's sometimes gut-wrenching.
Develop critical thinking, on the other hand, requires introspection—you must aim your critical view at yourself first. Develop this kind of thinking is quite difficult because we all identify ourselves as critical thinkers (at least I've never come across someone who claims the contrary), so we deceive ourselves into believing that we are already there.
Constantly criticise others and being a critical thinker is completely different; one is an effortless and fruitless activity, the other is a constant struggle with yourself — specifically, with your opinions.
Simplistically, critical thinking means thinking by yourself. Let's be clear, this is an impossible yet worthwhile endeavour. To a greater or a lesser extent, what we think is the result of an amalgamation of factors, including our cultural ideology, our family's values and beliefs, and the average views of those we surround ourselves with. On top of that, our information diet (news, social media, etc.) plays an ever-increasing role in how we perceive this world. Hence, we can only claim to “think by ourselves” to some extent, no matter how hard we try. Still, it is important to make an effort.
During the last century, some of the most prominent and original academic works on critical thinking (I should write pensamiento crítico) were done by post-revolutionary Cuban philosophers. Of course, these works don't appear in the official repositories of “academic wisdom”—check Wikipedia for instance, there is not a single mention there. What do you think about this? How easily you reject (or accept) my assertion depends on factors as trivial as your nationality. If you strongly disagree (or strongly agree) with me, you won't spend time looking further into it; you would easily conclude that I'm wrong (or that I'm right). that's your (national) ideology in action, not your critical thinking—of course, when I write you I am first and foremost writing to myself; I think where are all in the same mess here, but maybe the reader does not have this problem.
Being satisfied with the “official” version of reality is a sign of intellectual laziness, of our uncritical reasoning. Who are writing the official stories that we consume? and why? It is easier to believe in something blindly and then criticise whoever dares to question it.