Well, power in this universe has many different kinds.
It’s like that excuse Saitama gave to Genos in early chapters, where he said his method (physical training) is likely not applicable for Genos whose power came from cyborg parts.
So it’s just how each individual see their power.
For glasses guy, having the powered suit, and the ability to utilise it counts as part of his strength.
I really don't understand why this perverted four-eyes is so arrogant when his physical abilities are truly worthwhile only when his boosted by the armor unlike Sonic who is purely body strength