You might be confusing the word morality with mortality. These words are commonly misused.

Singular
morality

Plural
moralities

  1. (uncountable) Morality is the ability to tell the difference between things that are just and things that are evil.
    Without morality, everybody would be killing each other constantly.
  2. (countable) A morality is a set of rules and beliefs that say what actions are appropriate for people in a society to do.
  3. (countable) Your morality is your own personal set of beliefs for what is okay for you and other people to do.
    In my morality, it is always wrong to kill someone, no matter what.
  4. (uncountable) Morality is the field of moral philosophy.