You can adjust settings to see what you want - does it matter?

Does it bother you that you can adjust the settings of your chart to see whatever you want? For example...

Indicators
With indicators, such as MA's, it's possible to adjust the indicators to see whatever you want to see. For example, many people use moving averages as 'dynamic' levels of support and resistance (i.e. if price moves past a MA level, it's a sign of a new trend).

Price Action
Similarly with price action, it's possible to adjust the open/close of a candle to form whatever candlesticks (i.e. doji) or patterns that you want to see.

Does the fact that settings may be adjusted to see whatever you want to see, bother you? If not, how do you negate the effects of this fact?

As I understand it, you want to say about the psychological law of our consciousness. It just so happened that a person will always see what he wants to see.
Now, more to the point:
Indeed, changing the timeframe of charts, we can see a different picture. For example, candlestick patterns will disappear and there will be others. The fact that trade is necessary only when all the parameters of the situation exactly fit the established concepts of the trader.
Everyone chooses for himself comfortable settings of the chart. If there is a need to see the true motion graphics, without the noise, you can use filters. For example, Renko. Then we can not use candlestick patterns, but for we see trend movements, without being distracted by noise.