It is important to consider that Mr. Argyle, as the founder and...

It is important to consider that Mr. Argyle, as the founder and a direct or indirect 43% shareholder, has a significant stake in the company.
Other Board members are not shareholders but are "salaried employees" who may have interests that differ from those of the shareholders, the owners of the business.

His nomination and the calling of an EGM suggest that there may be conflicts arising from misaligned interests.

Ensuring that his substantial ownership interest is represented on the Board could align the company's direction more closely with the interests of all shareholders. A 43% shareholder's perspectives are likely more in line with the remaining shareholders owning 57% of the company than those of non-shareholding employees.