Skin-in-the-game Argument: Citizen Warriors and Origins of Democracy

In First Democracy: The Challenge of an Ancient Idea, Paul Woodruff argues that democracy became and remained the Athenian form of government for mainly two reasons:

1) It ended class warfare and created a harmonious community.

but perhaps more importantly,

2) It provided free citizen warriors (in the form of naval rowers) who identified with the state and were therefore willing to make sacrifices for it.

Woodruff says that if so many rowers were not needed for Athenian navies’ ships, elites may not have allowed the people (the many) to wield as much power as they did.

Being not at all a historian, I ask those who know more about ancient history to agree or disagree with the above assessment.

Did military need provide the conditions for democracy in Athens?

Does the state (or elites) today need something in exchange for genuine democracy?

What would today’s state (or elites) want from the people in return? Citizen consumers?

[I hope there is something less cynical than my last suggestion.]