The book addresses intellectual honesty, albeit somewhat indirectly.
In my view, one of the main reasons why generative grammar has not yet become an empirical science and seems to remain to be what Popper (1982: 32) calls "metaphysical research program," i.e., a "research programme ... which [is] not yet testable" is the fact that the field tolerates, if not encourages, intellectual dishonesty, not by accident but by design.

It is interesting to observe in this context that Boeckx 2006: chap. 3 tries to characterize the Minimalist Program in the terms of Lakatos' 'scientific research programmes'. Given the conspicuous absence of the concern for making the research program progressive (theoretically or empirically; see Lakatos 1970/1978), hence for making it a scientific research program in the terms of Lakatos 1970, 1978; cf. the [30221] posting "Lakatos 1978, applied to generative research" here, it seems to me to be more appropriate to regard Boeckx's conception of the current state of the Minimalist Program as being analogous to Popper's (1982) "metaphysical research programme" than to Lakatos' "scientific research programme." Adapting Popper's (1982: 161-162) phrasing, we might call the current state of the Minimalist Program as conceived of by Boeckx (2006: chap. 3) speculative anticipations of testable theories of the language faculty.

Boeckx, Cedric. 2006. Linguistic Minimalism: Origins, Concepts, Methods, and Aims, Oxford University Press, New York.
Popper, Karl. 1982. Quantum Theory and the Schism in Physics: From the Postscript to the Logic of Scientific Discovery, edited by W. W. Bartley, III., Routledge, London and New York.
Lakatos, Imre. 1970. "Falsification and Methodology of Scientific Research Programmes," in I. Lakatos and A. Musgrave (eds.), Criticism and the Growth of Knowledge, Cambridge University Press. pp. 91-195. (Reproduced in Lakatos 1978.)
Lakatos, Imre. 1973. A Radio Lecture: Science and Pseudoscience. (The audio is available at http://www.lse.ac.uk/collections/lakatos//Default.htm, and a slightly revised version is published in Lakatos 1978, as "Introduction.")
Lakatos, Imre. 1978. The Methodology of Scientific Research Programmes: Philosophical Papers Volume 1, edited by John Worrall and Gregory Currie, Cambridge University Press.