Lack of insurance coverage penalties

The penalty for not buying health insurance in Massachusetts could soon quadruple to $912 a year, the Boston Globe reports.The state is considering increasing the maximum penalty for not buying insurance to persuade those who can afford it, but still haven’t bought coverage, to comply. 

What I can’t figure out is what they will do with the fine money. Why not use it to purchase health insurance? If you can force a person to pay a fine, why not convert it to pay the premium and solve the problem going forward?