If you're going to trust the government (city/state/federal) to actually manage projects to a budget and schedule you'll always be disappointed. Those issues you raised are the same issues that are being dealt with around the country, and in many places it is WORSE or far more corrupt. You're naive if you think that government leaders and their cronies don't line their pockets with taxpayer funds. Imagine that (no pun intended).
It's that Bynum sold himself as a new type of mayor who would do things differently. Besides the easy fluff stuff and big lists (so big, they're full of hardly-actionable items), the city government has been about the same as under Bartlett. 4 years and virtually no progress on most of the big items in that plan, almost all far behind the initially stated schedules.
I know it's common, but that doesn't make it any better. Seems straight forward to do the job we're paying you to do and use the massive amounts of money allotted to make these things happen, but the reality is the city "leaders" selling these pork-like projects have no idea how much any of it will actually cost to make or even if they're even feasible. As usual, the Vision plan was a big fraud to increase their own power and to line the pockets of their friends.
But Tulsa has proven they'll always vote yes even if you rip them off again and again, so Bynum will keep it up and Tulsa in 2023 or 2030 will look a lot like it did in 2015: high crime, low education, led by a lying mayor and counsel.