If a particular Biblical text supports your preferred doctrine, it is absolutely literally true. If a particular Biblical text contradicts your preferred doctrine, it is absolutely figurative and/or symbolic.
Here is an example of a parable that is glossed over because it does not have any control over the Watchtower Society members:
Matthew 13:31-32: “Another parable He put forth to them, saying: ‘The kingdom of heaven is like a mustard seed, which a man took and sowed in his field, which indeed is the least of all the seeds; but when it is grown it is greater than the herbs and becomes a tree, so that the birds of the air come and nest in its branches.’'
The GB enjoys the power of having control over the actions of their adherents, so to better achieve that aim, they have decreed that Matthew 24:45-47 is literal
Exactly! This parable is the only reason the Watchtower Society have controlled their members for close to 140 years. Out of the nearly 30 parables, this is the only parable that is read over and over.