Why did the great landowners had too much power when peter the great was ruling?

During Peter the Great's reign, the great landowners, or nobility, wielded significant power due to their control over vast estates and serfs, which provided them with substantial economic resources. Peter's reforms, aimed at modernizing Russia, relied heavily on these landowners for military and administrative support, inadvertently reinforcing their influence. Additionally, the nobility benefited from the privileges granted by Peter, such as tax exemptions and land grants, which further solidified their authority in society. Consequently, their power often overshadowed the central government's efforts to centralize and strengthen the state.