The state of Minnesota shall encourage and enable people who are blind, or people with a visual or physical disability to participate fully in the social and economic life of the state and to engage in remunerative employment. People who are blind, or people with a visual or physical disability shall be employed by the state, its political subdivisions, the public schools, and in all other employment supported in whole or in part by public funds on the same terms and conditions as the able-bodied, unless it is shown that the particular disability prevents the performance of the work involved.