Implicit meaning of ‘the conflict of purpose’

Implicit meaning of ‘the conflict of purpose’

The passage below is from The Library: A Fragile History by Andrew Pettegree.

The county of Suffolk spawned a remarkable network of parish libraries in its prosperous wool towns, radiating out from the two major market towns at opposite ends of the county, Ipswich and Bury St Edmunds. We know of fifteen, of which, rather miraculously, eight are still more or less intact. Leaving aside the town library at Ipswich, the greatest by far was that of St James’s church (now cathedral) at Bury, which consisted of some 481 books, the majority in Latin. The surviving catalogue of gifts records the names of 117 individuals who donated books to the library between 1595 and 1764, predominantly gentry, clergy, physicians and schoolmasters, with the occasional tradesman. The inscriptions added to these books neatly illustrate the conflict of purpose playing out in the libraries of provincial England. When Anthony Rous, rector of Hessett, gave a valuable Basel folio of 1526 to the Bury library in 1595, he indicated that this was for the use of theological students, ‘in usum theologiae studiosorum’. The Royalist High Master of the grammar school in 1639 had a rather wider constituency in mind, ‘in usum republicae literariae’, though it might be said that the book, an edition of the Pauline epistles, would have appealed mostly to the clergy. Many of the other Suffolk libraries were the gift of individual donors for the use of the local minister: some, indeed, were housed in the parsonage rather than the church. Sometimes these donations seem rather ill advised. In the early eighteenth century, two tiny villages a mile apart near Lavenham received separate donations amounting to 3,500 books. A bewildering burden to their incumbents, they would have been a more suitable adornment to the great wool church at Lavenham. It is perhaps no coincidence that both disappeared, leaving scarcely a trace, at the beginning of the nineteenth century.

In the passage above I don’t understand what the underlined ‘the conflict of purpose’ means.

Perhaps the next two sentences used as examples to illustrate these conflicts of purpose. (Am I right?)

If I’m right I cannot figure out what conflict of purpose those two inscriptions reveals.

Thanks in advance.