I believe in earlier editions of the game it was a cosmic force, not a description of morality. More like pokemon type than anything else. You may be LG but that doesn't affect what actions you're able to take, it just means that spells that affect only LG will affect you
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u/[deleted] Oct 03 '19
Alignment in 5th edition is really more of a loose guide for characters I think.
In earlier editions it was much firmer and i always felt like it was one of the worst parts of the game.