If only landowners could vote, before long there would be only a few thousand land owners and their votes, the banks would see to it.
Quite the opposite is truth.
Further, the left is waging war on the small hold land owner, seeking to force all but the very wealthy into inner-city apartments.
If it were probable that every man would give his vote freely, and without influence of any kind, then, upon the true theory and genuine principles of liberty, every member of the community, however poor, should have a vote… But since that can hardly be expected, in persons of indigent fortunes, or such as are under the immediate dominion of others, all popular states have been obliged to establish certain qualifications, whereby, some who are suspected to have no will of their own, are excluded from voting; in order to set other individuals, whose wills may be supposed independent, more thoroughly upon a level with each other. (Alexander Hamilton, "The Farmer Refuted")