That's a bias, but it's not sufficient to guarantee that the highest "creativity" scores show a lower prevalence of self-reported honesty than the lower scores. It could easily be the other way around.

If I measured creativity in a group of test subjects using the Gough Creativity Scale and found that, e.g., the people in the top 10% of measured creativity were Honest at double the rate of the bottom 90%, would that finding be invalid because of the design of the Gough Creativity Scale?