because failing to do so is more than my job’s worth
We follow Corrections procedures to the letter in this facility, because failing to do so is more than my job’s worth.”

What does it mean by "failing to do so is more than my job’s worth"___________Does it mean that I must do so because it's my responsibility or,it's my job?

Question

because failing to do so is more than my job’s worth
We follow Corrections procedures to the letter in this facility, because failing to do so is more than my job’s worth.”

What does it mean by "failing to do so is more than my job’s worth"___________Does it mean that I must do so because it's my responsibility or,it's my job?

Answer

It means that you would loose your job if you fail to do so ( the thing or things).
more than my job is worth = would loose my job = get fired = terminated = let go = dismissed 
.
There is no implication of any other penalty.
.
Such an expression would be common to use as an exaggeration. It may not be strictly true.

Answer

Failing to follow the procedures incurs some kind of penalty. In this case the penalty is worth even more than the speaker's job, so they are extra careful. Maybe a very hefty fine, or having to go to jail, without any context it's hard to conclude anything more specific.