Excuse me, but when people represent coporations and institutions, they do indeed make such entities lie.
Especially, since they, as people, are not held personally responsible?
Only within the concept of Personification, namely treating something that isn't a person as if it is. An organization is not a person, even if it is comprised of people, and can therefore not make decisions, rather the people within it make decisions. The purpose of personification is to apply an attribute to the collective, namely in this case, for the speaker to imply that since some at the IRS and NSA lie, everyone at the IRS and NSA are liars which is clearly not the case. Or do you really believe of the tens of thousands of people employed by these agencies none of them have morals? If you do, remember that Snowden worked for them so that means, even though he left, he is by association also a liar?
If you were right, who are responsible for the lies then?
The people, who under penalty of perjury, knowingly made statements they knew to be false, or otherwise made the decisions that the laws were not to be obeyed by those within their organizations. You know, the people who are committing the crimes. Throwing out the baby with the bathwater may be a common tactic, but is as bad today as it was when that phrase was invented. The fact that in almost none of these cases have perjury or other charges been brought against them is a different problem that needs fixing.
An aside: if, by your statement, corporations (organizations) are not people, but are made up of people, then why do corporations get to have free speech? Organizations are not people, they are made up of people. People have free speech rights, organizations do not.