Just trying to think of a way to decide the realm a bit and give people a place to interact.
Noting is worse than a quite realm. With no feeling of progression.
Also with guild you can have ranks. So even if you don't get a lordship, you can still feel like you are moving up in the world.
Guilds won't solve your problems. Quiet realms are quiet because
a) nothing much is going on
b) people want someone to start something while they don't want to risk anything
c) you got unlucky and somehow ended up with quiet people
Some people have to be active and spend some of their time to keep people interested. As you know well, many players are actually pretty old so they lack time and energy to stay active these days.