Google, union mismanagement and only one story, and it is a blog critical of the unions, shows up. That is amazing to me. Unions are underfunded in some instances by less than 60%. Which means that almost half of the money paid in dues have been mismanaged. That much incompetence is only exceeded by the federal government.
The problem with collecting money and power, especially in large amounts, is that it attracts criminals, crooks, and con artists. The only real solution is to divest power and spread the money out. The probability of mismanagement is still great, maybe even greater but the impact is local rather than global.
How does one quantify the amount of harm. The average person swindled out of their money by local crooks or the average person's money confiscated by the government for redistribution less administration costs. The local crook can only steal what you have. Our government confiscates our earnings plus penalty. The local con artist has to sleep and it does take time to turn the con. Our government is now technologically advanced and can confiscate our money around the clock and in advance of our earning it.
The resident criminals can devastate an individual's life, our government has diminished the lives of this country's great grandchildren. It might be acceptable if it were an either or situation. But it's not. Both miscreants are aggressively pursing what little money we have left.