Exodus Rabah 40:4 explains that Judah was the greatest of the tribes, whereas Dan was the least of them1. Gd mentions Bezalel, a noble of the exalted Judites, descendant of Prince Caleb and the Prophetess Miriam, (Sotah 11b, Numbers 13:2-3, Megilla 14a), grandson of Hur, a leader recognized by Moses, (Exodus 24:14), alongside Oholiab the lowly Danite, notable only in his comparative unremarkabiliy, to protect Oholiab from embarrassment, and Bezalel from his ego, for the great and the small are equal before Gd.
For this the highest of honors; selection by Gd to build His Dwelling in our midst, these two particular individuals; one an Israelite of great stature, the other simply an Israelite, are mentioned to teach us that we are- all of us - equally special and ordinary before Gd, no matter the case, regardless of Tribe or class.
1. Commentaries explain either that he only had one son, (and that son was himself hard of hearing), or that Dan's son's name, Chushim, means lowly and weak. One could perhaps also cite Judges 18, Kings I 12:28-29, and Bahya Ibn Pakuda's remarks on Dan's camp and claim that Dan struggled with a strong inclination toward foreign worship even in the desert, (Targum pseudo Yonatan on Amalek's assault in the end of Beshalach).