In my local market there is an immense amount of corruption for lack of a better word. In terms of flavor I liken the existing cannabis market to the very early craft beer market in some ways. To break those two statements down better here is what I mean.
With regards to the "Corruption" aspect there is a significant amount of fudging on numbers when it comes to recreational cannabis. There are a limited number of testing facilities and growers shop those that are willing to give them the numbers they want. This is compounded by crop sampling for highest THC samples and then submitting those as representative of a much larger batch when in fact they are no such thing. Large corporations own multiple licenses for different types of facilities and can grow, test and market their product without any independent oversight (for the most part).
A strain does not yield a specific THC amount by genetics alone, the entire lifecycle of the plant determines this and it can vary wildly with the same seeds from grow to grow. Thats why a stable and consistent grow environment is essential for creating consistent product. It doesnt matter what seeds you buy, if you bash the grow, sometimes even slightly, you struggle to break 20%.
When I tried my very first dispensary weed I was stunned. I ended up throwing it out because it tasted like tobacco. Smell was decent but flavor... garbage. The economic pressure to quickly produce and bring to market product results in mass production shortcuts that are designed to increase profitablity - not quality. Think Budweiser. Mass produced, does the job... flavor - yeah not so much. High ABV... nah. The time and care it takes to make a great quality craft beer is vastly different than knocking out millions of gallons of average swill that many people will buy and never know the difference. Harvesting, trimming, drying and curing in the fastest, cheapest way possible is not going to yield high end results.
Thats why there is room for real craft growers somewhere in the market, but it has not matured to that point yet, at least not here. Large scale, corporate operations are going to maintain an iron grip on the distribution chain through political contributions and other shenanagins for as long as they can.