It is an important word. More so, in the consequences of accountability. When an individual makes a bad choice, and negative consequences result, accountability is often brought up. This is helpful not only to "punish" those who make bad choices but it can also be used to improve and avoid additional negative consequences.
When a company makes a burrito and it leads to food-poisoning to the masses, accountability causes the company to make immediate changes or it will eventually lead to its downfall (or at least lose a bunch of money - as an aside, how this company's stock is valued this high I have no idea).
It's a bit more difficult when dealing with the State. Unfortunately, elections is generally where accountability is or is supposed to be found (I use the word "unfortunately", since elections often happen at either two, four or six year intervals and generally involve only about 40-50% of the population).
It is true that accountability can occur without elections but it is often rare and - even more importantly - often fails to apply to those properly involved.
For example, with the Flint Water Crisis, numerous state officials were fired (this is supposedly accountability) but this didn't really include those in federal agencies (whose job was to "regulate" this conduct) or even those who were elected (whether local, state, or federal) who, based on their title, should likely be held accountable for the actions of lower employees (at least one would assume - especially if one believes a bank CEO should be held liable for providing loans with high risks of default).
Another example is the whole Hillary Clinton email "scandal". Mrs. Clinton, as Secretary of State (a job that often deals with serious national and even international matters) chose to make a few choices where one would think she should be held accountable.
First, she used a private email address in her daily government work routine.
Second, she didn't even have a separate computer for classified materials.
Third, the private emails she sent (where at least half dealt with her position as Secretary of State) were stored on a server at her personal home (not in a secure locked government vault).
Fourth, as a result of her choosing to use the personal email address, SHE alone was the decider - the one who determined which emails were private and which were government related.
Fifth, for over two months, the personal server was missing a digital certificate (used to protect ones information online).
Sixth, even under heavy scrutiny by Republicans mostly (via the Benghazi hearings) she chose to not produce ALL of the emails that were sent from the email address (again, that she used for both work AND personal reasons).
Seventh, even under this scrutiny (and with elections looming), after providing a good deal of these emails, she decided to delete the remaining emails.
And finally, not until the end did she admit she may have made a mistake.
Accountability. "The fact or condition of being accountable or responsible." Is this applicable to Mrs. Clinton in this situation? Will it ever be? Should it be?
I will admit, as we all hopefully should, that nobody is perfect. We all make mistakes. Whether we drive a school bus every day, sell insurance door-to-door, or are the head of one of the biggest departments in the United States (or even the world for that matter), we will all make choices that are often not the best.
However, what is important - or what should be important - is accountability. Not that we go to jail for our mistakes - or even get fired or fined (thought the State especially loves these punishments). But more importantly, to admit that we were wrong.
This helps for a plethora of reasons, with the most significant positive consequence of improving oneself. Through mistakes, we can learn to be better at what we do. Indeed, we can learn to remain humble. And understand that everyone makes mistakes. And with that, we can learn to forgive and love others. And this, is one way where we can learn to be libertarian. From accountability - especially to oneself - we can learn to treat others the way we would want to be treated (and hopefully without force).
NOTE: Trump is held accountable every time you hear his name on radio or television. All he has to do is be present. Thus, his name was not invoked in this blog post.