Reminder: green laser pointers have a ton of IR in them. It needs to be filtered out if you don’t want it. See this old (2011!) Labrigger post.
I.e., Paul and Kurt are right (see above). The absurd amount of power you measure out of a “green” laser pointer is not because it is recklessly underspec’d (although it might be that too), it’s because you’re picking up a bunch of the IR.