The latest measurements of rare $b\to s$ decays in the LHCb experiment haveled to results in tension with the predictions of the standard model (SM),including a tentative indication of the violation of lepton flavoruniversality. Assuming that this situation will persist because of new physics,we explore some of the potential consequences in the context of the SM extendedwith the seesaw mechanism involving right-handed neutrinos plus effectivedimension-six lepton-quark operators under the framework of minimal flavorviolation. We focus on a couple of such operators which can accommodate theLHCb anomalies and conform to the minimal flavor violation hypothesis in boththeir lepton and quark parts. We examine specifically thelepton-flavor-violating decays $B\to K^{(*)}\ell\ell'$, $B_s\to\phi\ell\ell'$,$B\to(\pi,\rho)\ell\ell'$, and $B_{d,s}\to\ell\ell'$, as well as $K_L\to e\mu$and $K\to\pi e\mu$, induced by such operators. The estimated branchingfractions of some of these decay modes with $\mu\tau$ in the final states areallowed by the pertinent experimental constraints to reach a few times$10^{-7}$ if other operators do not yield competitive effects. We also look atthe implications for $B\to K^{(*)}\nu\nu$ and $K\to\pi\nu\nu$, finding thattheir rates can be a few times larger than their SM values. These results aretestable in future experiments.