A good officer, should be prepared to listen and follow orders, (as long as those orders are lawful), look at the current case of the TPS command officer who is in the middle of a disciplinary hearing as it was he who ordered the "kettling" if people during the G20. His lawyer says he was told by higher ups to "take back the streets" he then issued his orders to the front line troops. Now I have no idea what an order of "take back the streets" encompasses. In hindsight he should have likely sought clarification. He issued the orders he did. It was to say the least a volatile and fluid situation. But he IS being held to account for his actions.
Todays officers, MUST have at the minimum a BA to even be considered, some have substainitally more education. In the 1970's the "average" education level of a front line officer was believe it or not grade 8!!! Back then the option was to hire big burly tough guys who could easily "duke it out" with anyone they came across. Don't forget officers for the most part had only their sidearm and their hands, Flashlights and batons really didn't come into play until the early 80's.
Now did "some" people get a "beat down" back then sure they did, BUT cops also almost always knew who the "troublemakers" were in town. It is likley in today's fast paced society, the local copper "may" know of 1 or 2 "known" to police people. We also tended not to hear of the "beat downs", as there was no social media no internet, no cell phones. Also I think people weren't as self absorbed and self entitled as they are today. It seems like there was an :understanding" back then if you were a bad *** and played it that way with cops then you were in for it, and they "accpepted it" and went on their way, (many times believing they got what they deserved). I don't ever think it is acceptable for an officer to strike, manhandle or otherwise assault a citizen, unless it is required to subdue or defend the officer or others from harm.
So yes there are bad cops, I would be the last to say there aren't I have seen and worked with some. But there are also bad citizens...lol Police should be held to a higher account for their actions but they are still humans with all the "defects" we all have.
But we have gotten sooo far off the topic here it is doubtful we can get back to the truly tragic event which is a 34 year old man is dead and none of us know why or if it was preventable or how or if things could have been done differently.