I'm not sure what you need excess wealth for as a knight. Sending it to your family?
Being a landed lord on the other hand opens a lot of new venues for you even if your income suffers. Then again, lords of poorer provinces always receive additional funding from the metropolis.
So why be a knight if you can become a lord?If you incentivise lords to hoard knights instead of incentivising knights to maintain knightly status, you are basically screwing knights over.
I would hate to see a situation where a Duke refuses to land his knight just because he wants to maximize his profit even if there are lordless regions available.
On the other hand, if knights have real incentives to choose knightly status over lordship (like being able to do some fun stuff lords aren't able to do), lords themselves won't even need additional encouragement.
Perhaps so they don't have to lower themselves to the level of peasantry and constantly beg for gold in order to maintain a unit in wartime?
