This asked why Islamic countries are more corrupt and the question was closed for "being too broad".
Islamic countries tend to be non secular and they often have laws against "blasphemy".
Prohibition against drawing Muhammad, against comparing him to others, would tend to make criticism of Islam difficult. It's difficult to analyze issues if you can't compare that to another. We don't normally consider comparing someone to another as "insulting". However, we may get killed for blasphemy by some terrorists if we do.
People can claim they are "offended" for any reason. It's obviously much easier than pretending to be a murder victim.
So, I wonder if such laws are "useful" for those who want to screw public funds?
According to one religious minority source, an accusation of blasphemy commonly subjects the accused, police, lawyers, and judges to harassment, threats, attacks and rioting. Critics complain that Pakistan's blasphemy law "is overwhelmingly being used to persecute religious minorities and settle personal vendettas," but calls for change in the blasphemy laws have been strongly resisted by Islamic parties - most prominently the Barelvi school of Islam.
In fact, it's not far fetched to think that someone "annoying" to "someone in power" can be eliminated with "vague laws" like blasphemy laws. One possible such sample is https://www.channelnewsasia.com/news/asia/commentary-ahok-left-jakarta-legacy-of-reform-8836708
In fact, are there any studies that shows that countries with effective anti-blasphemy laws tend to be more corrupt?
My guess is that democracy requires freedom of speech to function properly. Otherwise the people are not well informed. So, some countries, like USA, go all the way and make blasphemy illegal. Some country, like Canada has a very ineffective blasphemy laws that's rarely enforced with light punishment. Some like Indonesia have effective punishment.
Blasphemy laws can be used to stifle many otherwise legitimate political speech. How true is that?
I think to see the effect I want to see the "intensity" of blasphemy laws instead of just whether such laws exist. You get a slap on the wrist for blaspheming in Canada and death penalty in Pakistan. Also in Pakistan people with no intent to blaspheme or insult a religion are routinely sentenced to blasphemy. I think that may explains why Canada has little corruption and Pakistan has a lot.