You shouldn't have to beg for gold. You should offer your blade, and convince someone that this blade at their service is worth more than the gold in their pocket. In most realms, this isn't difficult.
Should I constantly be asking my liege or other lords for a better share?
Not 15 minutes ago I asked the "treasury" group of one of my characters realms for 75 gold. I can afford to recruit a unit or maintain it in the field, not both. And this is just a unit where soldiers cost 36 gold per 10.
