The goal should not be to have people follow your lead. The goal should be: get your team to follow good ideas, and not follow bad ideas. No matter who proposed them.

Smart people often have good ideas, but they can have bad ideas as well and a team needs to be prepared to reject them.

Likewise, the lowest ranking person in the organization can have a trillion dollar idea and your organization should be prepared to profit from it.

Then, no consensus building approach has a bulletproof guarantee that a consensus will happen.