I have to agree with Jim Ando earlier, that Kings around this time are all basically the same. After all they totally depended upon the fear/loyalty of their followers and if they lost that they were finished. Any potential rival had to be crushed, failing to do that was just asking for future strife.Today their methods may seem extreme but at the time it was expected.
Good king / Bad king what did he do for the country that is what counts. A long and bloody civil war. . . . ?

He is said to have introduced the bail system into English law, by which, for a payment, a person charged with a crime could be released until his trial.

So that means people with wealth could go free until trial which at the time could be many months. i bet non of the lower people of England ever got bail unless their master cleared it first.

"Good king / Bad king what did he do for the country that is what counts. A long and bloody civil war. . . . ? "

Richard III was born in 1452 and the first battle of the Wars of the Roses was in 1455 (excluding some of the inter-baronial feuding), so blaming him for the entire 30 years of conflict is a bit much!

" i bet non of the lower people of England ever got bail unless their master cleared it first."

Richard III did not introduce bail, it existed in some form from at least the Norman period, and was in fact available to all ranks of society, although it was not available in cases of murder. The Statute of Westminster (1275) limited the discretion of sheriffs with respect to granting bail. What Richard III's 1484 parliament did do was make bail easier to obtain by allowing JPs to grant bail, rather than just the county sheriffs. The Act also stated that an arrested person's goods could not be seized until they had been actually convicted of their crime.
Once you start looking at medieval records such as coroners, assize and manorial courts you realize that, despite what more socialist-orientated historians might say, even the commoners had quite a few rights under law. It wasn't all based on a Monty Python and the Holy Grail system of justice.