News coverage of the candidates for governor this year seems fixated on campaign cash: how much Republican incumbent Charlie Baker has and how little the candidates in the Democratic primary, Jay Gonzalez and Robert Massie, have. Yesterday, for example, The Boston Globe reported that Baker is sitting on a campaign account of more than $8 million and that Democrats Jay Gonzalez and Robert Massie have, combined, only $132,000. Until after the Sept. 4 primary, and until the winner of the primary raises many millions of dollars, we are not likely to hear a whole lot about what Gonzalez and Massie stand for or what they want to do as governor. That’s too bad. Each Democrat is peddling some audacious ideas. To ease the struggles of persons with addictions, Gonzalez, for example, wants to require health insurers to cover the cost of medical marijuana. And, to reduce deaths by overdose, he wants the state to allow safe injection sites. To combat climate change, Massie wan...