Hopefully by then you've used these gems and troops to spam mentors and seize someone else's income respectively.
It's essentially the same gambit as bloodhunting at 100% taxes with patrols or tanking your scales for a ridiculous bless : you're basically killing your long term self for more immediate power.
Either it works and you end up with a much more powerful position than you could ever have by playing more conservatively (
and immediately get dogpiled), or it fizzles out and you end up super dead.
Either way, it's quick
.