It is declared to be the policy of this state to provide rehabilitation services, to the extent needed and feasible within resources available, to eligible individuals with disabilities throughout the state, to the end that they may engage in useful and remunerative occupations and live independently to the extent of their capabilities, thereby increasing their social and economic well-being and that of their families, and the productive capacity of this state and nation, also thereby reducing the burden of dependency on families and taxpayers.